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20211222313310 = 25783241911997
BaseRepresentation
bin1001001100001110010101…
…01110011111100101011110
32122120011200211111202220212
410212013022232133211132
510122120040403011220
6110552523553212422
74154132634041330
oct446071256374536
978504624452825
1020211222313310
1164925930aa336
1223250a1561112
13b37baa5c7b92
144dc32a95d450
15250b186600c5
hex1261cab9f95e

20211222313310 has 48 divisors (see below), whose sum is σ = 42084340135776. Its totient is φ = 6846073074624.

The previous prime is 20211222313301. The next prime is 20211222313339. The reversal of 20211222313310 is 1331322211202.

It is a super-2 number, since 2×202112223133102 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20473769 + ... + 21438228.

It is an arithmetic number, because the mean of its divisors is an integer number (876757086162).

Almost surely, 220211222313310 is an apocalyptic number.

20211222313310 is an abundant number, since it is smaller than the sum of its proper divisors (21873117822466).

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

20211222313310 is an equidigital number, since it uses as much as digits as its factorization.

20211222313310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41912177 (or 41912094 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20211222313310 its reverse (1331322211202), we get a palindrome (21542544524512).

The spelling of 20211222313310 in words is "twenty trillion, two hundred eleven billion, two hundred twenty-two million, three hundred thirteen thousand, three hundred ten".

Divisors: 1 2 5 7 10 14 35 70 83 166 415 581 830 1162 2905 5810 6889 13778 34445 48223 68890 96446 241115 482230 41911997 83823994 209559985 293383979 419119970 586767958 1466919895 2933839790 3478695751 6957391502 17393478755 24350870257 34786957510 48701740514 121754351285 243508702570 288731747333 577463494666 1443658736665 2021122231331 2887317473330 4042244462662 10105611156655 20211222313310