22155540445224 has 48 divisors (see below), whose sum is σ = 60004959611220. Its totient is φ = 7385134498560.

The previous prime is 22155540445217. The next prime is 22155540445229. The reversal of 22155540445224 is 42254404555122.

22155540445224 is a `hidden beast` number, since 2 + 2 + 1 + 5 + 554 + 0 + 44 + 52 + 2 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21561330722724 + 594209722500 = 4643418^2 + 770850^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22155540445224.

It is not an unprimeable number, because it can be changed into a prime (22155540445229) 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, 11992894 + ... + 13716434.

Almost surely, 2^{22155540445224} is an apocalyptic number.

22155540445224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22155540445224 is an abundant number, since it is smaller than the sum of its proper divisors (37849419165996).

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

22155540445224 is a wasteful number, since it uses less digits than its factorization.

22155540445224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902090 (or 1902083 counting only the distinct ones).

The product of its (nonzero) digits is 2560000, while the sum is 45.

The spelling of 22155540445224 in words is "twenty-two trillion, one hundred fifty-five billion, five hundred forty million, four hundred forty-five thousand, two hundred twenty-four".