21799500022 has 8 divisors (see below), whose sum is σ = 32700870072. Its totient is φ = 10899210000.

The previous prime is 21799499989. The next prime is 21799500053. The reversal of 21799500022 is 22000599712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217504 + ... + 301507.

It is an arithmetic number, because the mean of its divisors is an integer number (4087608759).

Almost surely, 2^21799500022 is an apocalyptic number.

21799500022 is a deficient number, since it is larger than the sum of its proper divisors (10901370050).

21799500022 is a wasteful number, since it uses less digits than its factorization.

21799500022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540014.

The product of its (nonzero) digits is 22680, while the sum is 37.

The spelling of 21799500022 in words is "twenty-one billion, seven hundred ninety-nine million, five hundred thousand, twenty-two".