212073210 has 48 divisors (see below), whose sum is σ = 560444040. Its totient is φ = 55624320.

The previous prime is 212073187. The next prime is 212073241. The reversal of 212073210 is 12370212.

It can be written as a sum of positive squares in 4 ways, for example, as 47900241 + 164172969 = 6921^2 + 12813^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13825 + ... + 24804.

Almost surely, 2^212073210 is an apocalyptic number.

212073210 is an abundant number, since it is smaller than the sum of its proper divisors (348370830).

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

212073210 is a wasteful number, since it uses less digits than its factorization.

212073210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38703 (or 38700 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 212073210 is about 14562.7336032765. The cubic root of 212073210 is about 596.3418249201.

The spelling of 212073210 in words is "two hundred twelve million, seventy-three thousand, two hundred ten".