212151252 has 24 divisors (see below), whose sum is σ = 498584800. Its totient is φ = 70207776.

The previous prime is 212151239. The next prime is 212151257. The reversal of 212151252 is 252151212.

212151252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212151257) 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, 61927 + ... + 65262.

Almost surely, 2^212151252 is an apocalyptic number.

It is an amenable number.

212151252 is an abundant number, since it is smaller than the sum of its proper divisors (286433548).

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

212151252 is a wasteful number, since it uses less digits than its factorization.

212151252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127335 (or 127333 counting only the distinct ones).

The product of its digits is 400, while the sum is 21.

The square root of 212151252 is about 14565.4128674748. The cubic root of 212151252 is about 596.4149663305.

The spelling of 212151252 in words is "two hundred twelve million, one hundred fifty-one thousand, two hundred fifty-two".