21973009222 has 16 divisors (see below), whose sum is σ = 33160258800. Its totient is φ = 10919629152.

The previous prime is 21973009207. The next prime is 21973009259. The reversal of 21973009222 is 22290037912.

It is a congruent number.

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, 1410508 + ... + 1426000.

It is an arithmetic number, because the mean of its divisors is an integer number (2072516175).

Almost surely, 2^21973009222 is an apocalyptic number.

21973009222 is a deficient number, since it is larger than the sum of its proper divisors (11187249578).

21973009222 is a wasteful number, since it uses less digits than its factorization.

21973009222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19767.

The product of its (nonzero) digits is 27216, while the sum is 37.

The spelling of 21973009222 in words is "twenty-one billion, nine hundred seventy-three million, nine thousand, two hundred twenty-two".