22021977912264 has 48 divisors (see below), whose sum is σ = 65064934743120. Its totient is φ = 6673326639840.

The previous prime is 22021977912257. The next prime is 22021977912269. The reversal of 22021977912264 is 46221977912022.

22021977912264 is a `hidden beast` number, since 2 + 202 + 1 + 97 + 7 + 91 + 2 + 264 = 666.

It is a super-2 number, since 2×22021977912264² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22021977912264.

It is not an unprimeable number, because it can be changed into a prime (22021977912269) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13902763042 + ... + 13902764625.

It is an arithmetic number, because the mean of its divisors is an integer number (1355519473815).

Almost surely, 2^{22021977912264} is an apocalyptic number.

22021977912264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22021977912264 is an abundant number, since it is smaller than the sum of its proper divisors (43042956830856).

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

22021977912264 is a wasteful number, since it uses less digits than its factorization.

22021977912264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27805527690 (or 27805527683 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 22021977912264 in words is "twenty-two trillion, twenty-one billion, nine hundred seventy-seven million, nine hundred twelve thousand, two hundred sixty-four".