2121313212132 has 24 divisors (see below), whose sum is σ = 4950323631456. Its totient is φ = 707019717888.

The previous prime is 2121313212127. The next prime is 2121313212173. The reversal of 2121313212132 is 2312123131212.

It is a nude number because it is divisible by every one of its digits.

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, 10481358 + ... + 10681829.

It is an arithmetic number, because the mean of its divisors is an integer number (206263484644).

Almost surely, 2^{2121313212132} is an apocalyptic number.

It is an amenable number.

2121313212132 is an abundant number, since it is smaller than the sum of its proper divisors (2829010419324).

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

2121313212132 is a wasteful number, since it uses less digits than its factorization.

2121313212132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21171547 (or 21171545 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

Adding to 2121313212132 its reverse (2312123131212), we get a palindrome (4433436343344).

The spelling of 2121313212132 in words is "two trillion, one hundred twenty-one billion, three hundred thirteen million, two hundred twelve thousand, one hundred thirty-two".