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222222202121013 = 32989103278638397
BaseRepresentation
bin110010100001110000100011…
…011010110010101100110101
31002010211020100100102201001220
4302201300203122302230311
5213111342032220333023
62104343245331140553
764544011220610333
oct6241604332625465
91063736310381056
10222222202121013
11648969a785a506
1220b10199a44759
1396cc604ac5953
143cc387d368b53
151aa57995cd3e3
hexca1c236b2b35

222222202121013 has 32 divisors (see below), whose sum is σ = 312966648633600. Its totient is φ = 140059261579776.

The previous prime is 222222202120999. The next prime is 222222202121083. The reversal of 222222202121013 is 310121202222222.

It is not a de Polignac number, because 222222202121013 - 26 = 222222202120949 is a prime.

It is a super-2 number, since 2×2222222021210132 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222222202121083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138521670 + ... + 140116727.

It is an arithmetic number, because the mean of its divisors is an integer number (9780207769800).

Almost surely, 2222222202121013 is an apocalyptic number.

It is an amenable number.

222222202121013 is a deficient number, since it is larger than the sum of its proper divisors (90744446512587).

222222202121013 is a wasteful number, since it uses less digits than its factorization.

222222202121013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278638621.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 222222202121013 its reverse (310121202222222), we get a palindrome (532343404343235).

The spelling of 222222202121013 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, two hundred two million, one hundred twenty-one thousand, thirteen".

Divisors: 1 3 29 87 89 103 267 309 2581 2987 7743 8961 9167 27501 265843 797529 278638397 835915191 8080513513 24241540539 24798817333 28699754891 74396451999 86099264673 719165702657 832292891839 2157497107971 2496878675517 2554278185299 7662834555897 74074067373671 222222202121013