21562344112 has 40 divisors (see below), whose sum is σ = 43011309600. Its totient is φ = 10465297920.

The previous prime is 21562344091. The next prime is 21562344119. The reversal of 21562344112 is 21144326512.

It is not an unprimeable number, because it can be changed into a prime (21562344119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47958 + ... + 213130.

It is an arithmetic number, because the mean of its divisors is an integer number (1075282740).

Almost surely, 2^21562344112 is an apocalyptic number.

It is an amenable number.

21562344112 is a deficient number, since it is larger than the sum of its proper divisors (21448965488).

21562344112 is a wasteful number, since it uses less digits than its factorization.

21562344112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165421 (or 165415 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The spelling of 21562344112 in words is "twenty-one billion, five hundred sixty-two million, three hundred forty-four thousand, one hundred twelve".