22731445513072 has 10 divisors (see below), whose sum is σ = 44042175681608. Its totient is φ = 11365722756528.

The previous prime is 22731445512983. The next prime is 22731445513201. The reversal of 22731445513072 is 27031554413722.

It is a super-2 number, since 2×22731445513072² (a number of 28 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 as a sum of consecutive naturals, namely, 710357672268 + ... + 710357672299.

Almost surely, 2^{22731445513072} is an apocalyptic number.

It is an amenable number.

22731445513072 is a deficient number, since it is larger than the sum of its proper divisors (21310730168536).

22731445513072 is a wasteful number, since it uses less digits than its factorization.

22731445513072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420715344575 (or 1420715344569 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 46.

Adding to 22731445513072 its reverse (27031554413722), we get a palindrome (49762999926794).

The spelling of 22731445513072 in words is "twenty-two trillion, seven hundred thirty-one billion, four hundred forty-five million, five hundred thirteen thousand, seventy-two".