2131212231204 has 48 divisors (see below), whose sum is σ = 5683307000448. Its totient is φ = 608909810688.

The previous prime is 2131212231139. The next prime is 2131212231223. The reversal of 2131212231204 is 4021322121312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9904084 + ... + 10116980.

It is an arithmetic number, because the mean of its divisors is an integer number (118402229176).

Almost surely, 2^{2131212231204} is an apocalyptic number.

It is an amenable number.

2131212231204 is an abundant number, since it is smaller than the sum of its proper divisors (3552094769244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131212231204 is a wasteful number, since it uses less digits than its factorization.

2131212231204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332084 (or 332082 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 2131212231204 its reverse (4021322121312), we get a palindrome (6152534352516).

The spelling of 2131212231204 in words is "two trillion, one hundred thirty-one billion, two hundred twelve million, two hundred thirty-one thousand, two hundred four".