21422772232 has 32 divisors (see below), whose sum is σ = 42417835200. Its totient is φ = 10114977600.

The previous prime is 21422772221. The next prime is 21422772247. The reversal of 21422772232 is 23227722412.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179319 + ... + 273862.

It is an arithmetic number, because the mean of its divisors is an integer number (1325557350).

Almost surely, 2^21422772232 is an apocalyptic number.

It is an amenable number.

21422772232 is a deficient number, since it is larger than the sum of its proper divisors (20995062968).

21422772232 is a wasteful number, since it uses less digits than its factorization.

21422772232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453517 (or 453513 counting only the distinct ones).

The product of its digits is 37632, while the sum is 34.

The spelling of 21422772232 in words is "twenty-one billion, four hundred twenty-two million, seven hundred seventy-two thousand, two hundred thirty-two".