21422200688 has 40 divisors (see below), whose sum is σ = 48444137472. Its totient is φ = 8985601728.

The previous prime is 21422200687. The next prime is 21422200699. The reversal of 21422200688 is 88600222412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21422200687) 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, 2029520 + ... + 2040047.

Almost surely, 2^21422200688 is an apocalyptic number.

21422200688 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

21422200688 is an abundant number, since it is smaller than the sum of its proper divisors (27021936784).

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

21422200688 is a wasteful number, since it uses less digits than its factorization.

21422200688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4069629 (or 4069623 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 35.

The spelling of 21422200688 in words is "twenty-one billion, four hundred twenty-two million, two hundred thousand, six hundred eighty-eight".