21202310204 has 12 divisors (see below), whose sum is σ = 37105756464. Its totient is φ = 10600665504.

The previous prime is 21202310191. The next prime is 21202310219. The reversal of 21202310204 is 40201320212.

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, 14369 + ... + 206424.

It is an arithmetic number, because the mean of its divisors is an integer number (3092146372).

Almost surely, 2^21202310204 is an apocalyptic number.

It is an amenable number.

21202310204 is a deficient number, since it is larger than the sum of its proper divisors (15903446260).

21202310204 is a wasteful number, since it uses less digits than its factorization.

21202310204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244804 (or 244802 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 21202310204 its reverse (40201320212), we get a palindrome (61403630416).

The spelling of 21202310204 in words is "twenty-one billion, two hundred two million, three hundred ten thousand, two hundred four".