21122132012113 has 16 divisors (see below), whose sum is σ = 23346200275200. Its totient is φ = 18948963646080.

The previous prime is 21122132011979. The next prime is 21122132012123. The reversal of 21122132012113 is 31121023122112.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21122132012113 is a prime.

It is a super-2 number, since 2×21122132012113² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21122132012123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4690518 + ... + 8015311.

It is an arithmetic number, because the mean of its divisors is an integer number (1459137517200).

Almost surely, 2^{21122132012113} is an apocalyptic number.

It is an amenable number.

21122132012113 is a deficient number, since it is larger than the sum of its proper divisors (2224068263087).

21122132012113 is a wasteful number, since it uses less digits than its factorization.

21122132012113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12707832.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 21122132012113 its reverse (31121023122112), we get a palindrome (52243155134225).

The spelling of 21122132012113 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred thirty-two million, twelve thousand, one hundred thirteen".