221544625574352 has 20 divisors (see below), whose sum is σ = 572323616067200. Its totient is φ = 73848208524768.

The previous prime is 221544625574341. The next prime is 221544625574357. The reversal of 221544625574352 is 253475526445122.

It is a super-2 number, since 2×221544625574352² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221544625574292 and 221544625574301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221544625574357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2307756516352 + ... + 2307756516447.

It is an arithmetic number, because the mean of its divisors is an integer number (28616180803360).

Almost surely, 2^{221544625574352} is an apocalyptic number.

It is an amenable number.

221544625574352 is an abundant number, since it is smaller than the sum of its proper divisors (350778990492848).

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

221544625574352 is a wasteful number, since it uses less digits than its factorization.

221544625574352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4615513032810 (or 4615513032804 counting only the distinct ones).

The product of its digits is 80640000, while the sum is 57.

The spelling of 221544625574352 in words is "two hundred twenty-one trillion, five hundred forty-four billion, six hundred twenty-five million, five hundred seventy-four thousand, three hundred fifty-two".