212255320 has 32 divisors (see below), whose sum is σ = 478033200. Its totient is φ = 84820608.

The previous prime is 212255297. The next prime is 212255341. The reversal of 212255320 is 23552212.

It is a junction number, because it is equal to n+sod(n) for n = 212255291 and 212255300.

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, 56542 + ... + 60178.

Almost surely, 2^212255320 is an apocalyptic number.

212255320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212255320 is an abundant number, since it is smaller than the sum of its proper divisors (265777880).

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

212255320 is a wasteful number, since it uses less digits than its factorization.

212255320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5107 (or 5103 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 212255320 is about 14568.9848651167. The cubic root of 212255320 is about 596.5124715555.

The spelling of 212255320 in words is "two hundred twelve million, two hundred fifty-five thousand, three hundred twenty".