212451212 has 12 divisors (see below), whose sum is σ = 378091560. Its totient is φ = 104425056.

The previous prime is 212451167. The next prime is 212451223. The reversal of 212451212 is 212154212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449873 + ... + 450344.

It is an arithmetic number, because the mean of its divisors is an integer number (31507630).

Almost surely, 2^212451212 is an apocalyptic number.

It is an amenable number.

212451212 is a deficient number, since it is larger than the sum of its proper divisors (165640348).

212451212 is a wasteful number, since it uses less digits than its factorization.

212451212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900280 (or 900278 counting only the distinct ones).

The product of its digits is 320, while the sum is 20.

The square root of 212451212 is about 14575.7062264578. The cubic root of 212451212 is about 596.6959237168.

The spelling of 212451212 in words is "two hundred twelve million, four hundred fifty-one thousand, two hundred twelve".