22027544305172 has 48 divisors (see below), whose sum is σ = 44169112350720. Its totient is φ = 9415959914592.

The previous prime is 22027544305003. The next prime is 22027544305181. The reversal of 22027544305172 is 27150344572022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30064529 + ... + 30788487.

It is an arithmetic number, because the mean of its divisors is an integer number (920189840640).

Almost surely, 2^{22027544305172} is an apocalyptic number.

It is an amenable number.

22027544305172 is an abundant number, since it is smaller than the sum of its proper divisors (22141568045548).

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

22027544305172 is a wasteful number, since it uses less digits than its factorization.

22027544305172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726780 (or 726778 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 44.

Adding to 22027544305172 its reverse (27150344572022), we get a palindrome (49177888877194).

The spelling of 22027544305172 in words is "twenty-two trillion, twenty-seven billion, five hundred forty-four million, three hundred five thousand, one hundred seventy-two".