21922905164102 has 16 divisors (see below), whose sum is σ = 34022617226640. Its totient is φ = 10582128668832.

The previous prime is 21922905164101. The next prime is 21922905164179. The reversal of 21922905164102 is 20146150922912.

It is a super-2 number, since 2×21922905164102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21922905164101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23517233 + ... + 24431660.

It is an arithmetic number, because the mean of its divisors is an integer number (2126413576665).

Almost surely, 2^{21922905164102} is an apocalyptic number.

21922905164102 is a deficient number, since it is larger than the sum of its proper divisors (12099712062538).

21922905164102 is a wasteful number, since it uses less digits than its factorization.

21922905164102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47956807.

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 21922905164102 in words is "twenty-one trillion, nine hundred twenty-two billion, nine hundred five million, one hundred sixty-four thousand, one hundred two".