21132101204 has 12 divisors (see below), whose sum is σ = 38174118528. Its totient is φ = 10225210200.

The previous prime is 21132101197. The next prime is 21132101219. The reversal of 21132101204 is 40210123112.

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, 85209962 + ... + 85210209.

It is an arithmetic number, because the mean of its divisors is an integer number (3181176544).

Almost surely, 2^21132101204 is an apocalyptic number.

It is an amenable number.

21132101204 is a deficient number, since it is larger than the sum of its proper divisors (17042017324).

21132101204 is a wasteful number, since it uses less digits than its factorization.

21132101204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170420206 (or 170420204 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21132101204 its reverse (40210123112), we get a palindrome (61342224316).

The spelling of 21132101204 in words is "twenty-one billion, one hundred thirty-two million, one hundred one thousand, two hundred four".