6132721212 has 36 divisors (see below), whose sum is σ = 15655652376. Its totient is φ = 2023999200.

The previous prime is 6132721187. The next prime is 6132721223. The reversal of 6132721212 is 2121272316.

6132721212 is a `hidden beast` number, since 613 + 2 + 7 + 21 + 21 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×6132721212² = 75220538928229497888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 839698 + ... + 846969.

Almost surely, 2^6132721212 is an apocalyptic number.

It is an amenable number.

6132721212 is an abundant number, since it is smaller than the sum of its proper divisors (9522931164).

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

6132721212 is a wasteful number, since it uses less digits than its factorization.

6132721212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686778 (or 1686773 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 6132721212 is about 78311.6926901724. The cubic root of 6132721212 is about 1830.4213559901.

Adding to 6132721212 its reverse (2121272316), we get a palindrome (8253993528).

Subtracting from 6132721212 its reverse (2121272316), we obtain a square (4011448896 = 63336²).

The spelling of 6132721212 in words is "six billion, one hundred thirty-two million, seven hundred twenty-one thousand, two hundred twelve".