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12212020001022 = 232524780616971
BaseRepresentation
bin1011000110110101010100…
…0111010011100011111110
31121020110100200010002212220
42301231111013103203332
53100040204110013042
641550042522310210
72400201145205202
oct261552507234376
947213320102786
1012212020001022
1139890a7a18746
121452930958366
136a77860572aa
143030ca206b02
151629e17668ec
hexb1b551d38fe

12212020001022 has 16 divisors (see below), whose sum is σ = 24425007708672. Its totient is φ = 4070512049240.

The previous prime is 12212020001009. The next prime is 12212020001023. The reversal of 12212020001022 is 22010002021221.

It is a super-2 number, since 2×122120200010222 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12212020000992 and 12212020001010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212020001023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40157004 + ... + 40459967.

It is an arithmetic number, because the mean of its divisors is an integer number (1526562981792).

Almost surely, 212212020001022 is an apocalyptic number.

12212020001022 is an abundant number, since it is smaller than the sum of its proper divisors (12212987707650).

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

12212020001022 is a wasteful number, since it uses less digits than its factorization.

12212020001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80642223.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12212020001022 its reverse (22010002021221), we get a palindrome (34222022022243).

The spelling of 12212020001022 in words is "twelve trillion, two hundred twelve billion, twenty million, one thousand, twenty-two".

Divisors: 1 2 3 6 25247 50494 75741 151482 80616971 161233942 241850913 483701826 2035336666837 4070673333674 6106010000511 12212020001022