22245666981140 has 12 divisors (see below), whose sum is σ = 46715900660436. Its totient is φ = 8898266792448.

The previous prime is 22245666981137. The next prime is 22245666981191. The reversal of 22245666981140 is 4118966654222.

It can be written as a sum of positive squares in 2 ways, for example, as 4737953235856 + 17507713745284 = 2176684^2 + 4184222^2 .

It is a super-2 number, since 2×22245666981140² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556141674509 + ... + 556141674548.

It is an arithmetic number, because the mean of its divisors is an integer number (3892991721703).

Almost surely, 2^{22245666981140} is an apocalyptic number.

22245666981140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22245666981140 is an abundant number, since it is smaller than the sum of its proper divisors (24470233679296).

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

22245666981140 is a wasteful number, since it uses less digits than its factorization.

22245666981140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112283349066 (or 1112283349064 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 56.

The spelling of 22245666981140 in words is "twenty-two trillion, two hundred forty-five billion, six hundred sixty-six million, nine hundred eighty-one thousand, one hundred forty".