2121231313332 has 72 divisors (see below), whose sum is σ = 5652140968320. Its totient is φ = 687966864480.

The previous prime is 2121231313321. The next prime is 2121231313351. The reversal of 2121231313332 is 2333131321212.

2121231313332 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 2 + 313 + 13 + 332 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 = 2121231313296 and 2121231313305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7025644 + ... + 7321347.

Almost surely, 2^{2121231313332} is an apocalyptic number.

It is an amenable number.

2121231313332 is an abundant number, since it is smaller than the sum of its proper divisors (3530909654988).

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

2121231313332 is a wasteful number, since it uses less digits than its factorization.

2121231313332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14347078 (or 14347033 counting only the distinct ones).

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

Adding to 2121231313332 its reverse (2333131321212), we get a palindrome (4454362634544).

The spelling of 2121231313332 in words is "two trillion, one hundred twenty-one billion, two hundred thirty-one million, three hundred thirteen thousand, three hundred thirty-two".