21163122105522 has 16 divisors (see below), whose sum is σ = 42383519245920. Its totient is φ = 7044828196032.

The previous prime is 21163122105443. The next prime is 21163122105617. The reversal of 21163122105522 is 22550122136112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2386454983 + ... + 2386463850.

It is an arithmetic number, because the mean of its divisors is an integer number (2648969952870).

Almost surely, 2^{21163122105522} is an apocalyptic number.

21163122105522 is an abundant number, since it is smaller than the sum of its proper divisors (21220397140398).

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

21163122105522 is a wasteful number, since it uses less digits than its factorization.

21163122105522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4772919577.

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 21163122105522 in words is "twenty-one trillion, one hundred sixty-three billion, one hundred twenty-two million, one hundred five thousand, five hundred twenty-two".