21132322133212 has 24 divisors (see below), whose sum is σ = 36998869730480. Its totient is φ = 10561216942080.

The previous prime is 21132322133189. The next prime is 21132322133233. The reversal of 21132322133212 is 21233122323112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256833703 + ... + 256915969.

Almost surely, 2^{21132322133212} is an apocalyptic number.

It is an amenable number.

21132322133212 is a deficient number, since it is larger than the sum of its proper divisors (15866547597268).

21132322133212 is a wasteful number, since it uses less digits than its factorization.

21132322133212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111541 (or 111539 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

Adding to 21132322133212 its reverse (21233122323112), we get a palindrome (42365444456324).

The spelling of 21132322133212 in words is "twenty-one trillion, one hundred thirty-two billion, three hundred twenty-two million, one hundred thirty-three thousand, two hundred twelve".