212312121332 has 24 divisors (see below), whose sum is σ = 375454934400. Its totient is φ = 105039740160.

The previous prime is 212312121247. The next prime is 212312121337. The reversal of 212312121332 is 233121213212.

It is a junction number, because it is equal to n+sod(n) for n = 212312121298 and 212312121307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212312121337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1889669 + ... + 1998867.

It is an arithmetic number, because the mean of its divisors is an integer number (15643955600).

Almost surely, 2^212312121332 is an apocalyptic number.

It is an amenable number.

212312121332 is a deficient number, since it is larger than the sum of its proper divisors (163142813068).

212312121332 is a wasteful number, since it uses less digits than its factorization.

212312121332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114311 (or 114309 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

Adding to 212312121332 its reverse (233121213212), we get a palindrome (445433334544).

The spelling of 212312121332 in words is "two hundred twelve billion, three hundred twelve million, one hundred twenty-one thousand, three hundred thirty-two".