21222410204 has 48 divisors (see below), whose sum is σ = 38399688096. Its totient is φ = 10258099200.

The previous prime is 21222410177. The next prime is 21222410303. The reversal of 21222410204 is 40201422212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5466344 + ... + 5470224.

It is an arithmetic number, because the mean of its divisors is an integer number (799993502).

Almost surely, 2^21222410204 is an apocalyptic number.

It is an amenable number.

21222410204 is a deficient number, since it is larger than the sum of its proper divisors (17177277892).

21222410204 is a wasteful number, since it uses less digits than its factorization.

21222410204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4326 (or 4324 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 21222410204 its reverse (40201422212), we get a palindrome (61423832416).

The spelling of 21222410204 in words is "twenty-one billion, two hundred twenty-two million, four hundred ten thousand, two hundred four".