21802214204 has 12 divisors (see below), whose sum is σ = 38194951200. Its totient is φ = 10889371008.

The previous prime is 21802214197. The next prime is 21802214219. The reversal of 21802214204 is 40241220812.

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, 2929844 + ... + 2937275.

It is an arithmetic number, because the mean of its divisors is an integer number (3182912600).

Almost surely, 2^21802214204 is an apocalyptic number.

It is an amenable number.

21802214204 is a deficient number, since it is larger than the sum of its proper divisors (16392736996).

21802214204 is a wasteful number, since it uses less digits than its factorization.

21802214204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5868052 (or 5868050 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The spelling of 21802214204 in words is "twenty-one billion, eight hundred two million, two hundred fourteen thousand, two hundred four".