2121333231132 has 72 divisors (see below), whose sum is σ = 5655276623360. Its totient is φ = 668613722400.

The previous prime is 2121333231131. The next prime is 2121333231197. The reversal of 2121333231132 is 2311323331212.

2121333231132 is a `hidden beast` number, since 2 + 1 + 2 + 13 + 332 + 311 + 3 + 2 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 2121333231096 and 2121333231105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121333231131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2607244 + ... + 3322707.

Almost surely, 2^{2121333231132} is an apocalyptic number.

It is an amenable number.

2121333231132 is an abundant number, since it is smaller than the sum of its proper divisors (3533943392228).

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

2121333231132 is a wasteful number, since it uses less digits than its factorization.

2121333231132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5930503 (or 5930498 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

Adding to 2121333231132 its reverse (2311323331212), we get a palindrome (4432656562344).

The spelling of 2121333231132 in words is "two trillion, one hundred twenty-one billion, three hundred thirty-three million, two hundred thirty-one thousand, one hundred thirty-two".