21022132112 has 40 divisors (see below), whose sum is σ = 42524075904. Its totient is φ = 10048667904.

The previous prime is 21022132097. The next prime is 21022132123. The reversal of 21022132112 is 21123122012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 719093 + ... + 747755.

Almost surely, 2^21022132112 is an apocalyptic number.

It is an amenable number.

21022132112 is an abundant number, since it is smaller than the sum of its proper divisors (21501943792).

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

21022132112 is a wasteful number, since it uses less digits than its factorization.

21022132112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30687 (or 30681 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21022132112 its reverse (21123122012), we get a palindrome (42145254124).

The spelling of 21022132112 in words is "twenty-one billion, twenty-two million, one hundred thirty-two thousand, one hundred twelve".