212253020 has 24 divisors (see below), whose sum is σ = 509407584. Its totient is φ = 72772416.

The previous prime is 212253017. The next prime is 212253061. The reversal of 212253020 is 20352212.

It is a self number, because there is not a number n which added to its sum of digits gives 212253020.

It is a congruent number.

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, 757907 + ... + 758186.

It is an arithmetic number, because the mean of its divisors is an integer number (21225316).

Almost surely, 2^212253020 is an apocalyptic number.

212253020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212253020 is an abundant number, since it is smaller than the sum of its proper divisors (297154564).

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

212253020 is a wasteful number, since it uses less digits than its factorization.

212253020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516109 (or 1516107 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 212253020 is about 14568.9059300965. The cubic root of 212253020 is about 596.5103169434.

The spelling of 212253020 in words is "two hundred twelve million, two hundred fifty-three thousand, twenty".