21113162635122 has 32 divisors (see below), whose sum is σ = 47008193261760. Its totient is φ = 7024212767520.

The previous prime is 21113162635099. The next prime is 21113162635139. The reversal of 21113162635122 is 22153626131112.

21113162635122 is a `hidden beast` number, since 2 + 1 + 1 + 1 + 3 + 1 + 6 + 2 + 635 + 12 + 2 = 666.

It is a super-2 number, since 2×21113162635122² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375196908 + ... + 375253175.

It is an arithmetic number, because the mean of its divisors is an integer number (1469006039430).

Almost surely, 2^{21113162635122} is an apocalyptic number.

21113162635122 is an abundant number, since it is smaller than the sum of its proper divisors (25895030626638).

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

21113162635122 is a wasteful number, since it uses less digits than its factorization.

21113162635122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750450615 (or 750450609 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

Adding to 21113162635122 its reverse (22153626131112), we get a palindrome (43266788766234).

The spelling of 21113162635122 in words is "twenty-one trillion, one hundred thirteen billion, one hundred sixty-two million, six hundred thirty-five thousand, one hundred twenty-two".