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121220302001022 = 23273730029865889
BaseRepresentation
bin11011100011111111001101…
…000010100101001101111110
3120220012112210021021122200200
4123203333031002211031332
5111342033134303013042
61105451500555504330
734350610042066440
oct3343771502451576
9526175707248620
10121220302001022
1135696272300144
1211719381a580a6
135284043b3ab23
1421d1145a14490
15e03341863c4c
hex6e3fcd0a537e

121220302001022 has 96 divisors (see below), whose sum is σ = 308287734955200. Its totient is φ = 33697146783744.

The previous prime is 121220302001021. The next prime is 121220302001033. The reversal of 121220302001022 is 220100203022121.

121220302001022 is a `hidden beast` number, since 121 + 220 + 302 + 0 + 0 + 1 + 0 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121220302000986 and 121220302001004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220302001021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 139562254 + ... + 140428142.

It is an arithmetic number, because the mean of its divisors is an integer number (3211330572450).

Almost surely, 2121220302001022 is an apocalyptic number.

121220302001022 is an abundant number, since it is smaller than the sum of its proper divisors (187067432954178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121220302001022 is a wasteful number, since it uses less digits than its factorization.

121220302001022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895970 (or 895967 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 121220302001022 its reverse (220100203022121), we get a palindrome (341320505023143).

The spelling of 121220302001022 in words is "one hundred twenty-one trillion, two hundred twenty billion, three hundred two million, one thousand, twenty-two".

Divisors: 1 2 3 6 7 9 14 18 21 37 42 63 74 111 126 222 259 333 518 666 777 1554 2331 4662 30029 60058 90087 180174 210203 270261 420406 540522 630609 865889 1111073 1261218 1731778 1891827 2222146 2597667 3333219 3783654 5195334 6061223 6666438 7777511 7793001 9999657 12122446 15555022 15586002 18183669 19999314 23332533 32037893 36367338 46665066 54551007 64075786 69997599 96113679 109102014 139995198 192227358 224265251 288341037 448530502 576682074 672795753 1345591506 2018387259 4036774518 26001780781 52003561562 78005342343 156010684686 182012465467 234016027029 364024930934 468032054058 546037396401 962065888897 1092074792802 1638112189203 1924131777794 2886197666691 3276224378406 5772395333382 6734461222279 8658593000073 13468922444558 17317186000146 20203383666837 40406767333674 60610151000511 121220302001022