212131332112 has 40 divisors (see below), whose sum is σ = 470734006016. Its totient is φ = 90717048576.

The previous prime is 212131332103. The next prime is 212131332239. The reversal of 212131332112 is 211233131212.

It is a super-2 number, since 2×212131332112² (a number of 23 digits) contains 22 as substring.

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, 1993533 + ... + 2097244.

Almost surely, 2^212131332112 is an apocalyptic number.

It is an amenable number.

212131332112 is an abundant number, since it is smaller than the sum of its proper divisors (258602673904).

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

212131332112 is a wasteful number, since it uses less digits than its factorization.

212131332112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4091255 (or 4091249 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

Adding to 212131332112 its reverse (211233131212), we get a palindrome (423364463324).

Subtracting from 212131332112 its reverse (211233131212), we obtain a square (898200900 = 29970²).

The spelling of 212131332112 in words is "two hundred twelve billion, one hundred thirty-one million, three hundred thirty-two thousand, one hundred twelve".