21122101222313 has 32 divisors (see below), whose sum is σ = 27526205629440. Its totient is φ = 15728607267840.

The previous prime is 21122101222309. The next prime is 21122101222349. The reversal of 21122101222313 is 31322210122112.

It is a cyclic number.

It is not a de Polignac number, because 21122101222313 - 2² = 21122101222309 is a prime.

It is a super-2 number, since 2×21122101222313² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21122101252313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95058923 + ... + 95280863.

It is an arithmetic number, because the mean of its divisors is an integer number (860193925920).

Almost surely, 2^{21122101222313} is an apocalyptic number.

It is an amenable number.

21122101222313 is a deficient number, since it is larger than the sum of its proper divisors (6404104407127).

21122101222313 is a wasteful number, since it uses less digits than its factorization.

21122101222313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283497.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 21122101222313 its reverse (31322210122112), we get a palindrome (52444311344425).

The spelling of 21122101222313 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred one million, two hundred twenty-two thousand, three hundred thirteen".