212255020 has 12 divisors (see below), whose sum is σ = 445735584. Its totient is φ = 84902000.

The previous prime is 212254969. The next prime is 212255027. The reversal of 212255020 is 20552212.

It is not an unprimeable number, because it can be changed into a prime (212255027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5306356 + ... + 5306395.

It is an arithmetic number, because the mean of its divisors is an integer number (37144632).

Almost surely, 2^212255020 is an apocalyptic number.

212255020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212255020 is an abundant number, since it is smaller than the sum of its proper divisors (233480564).

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

212255020 is a wasteful number, since it uses less digits than its factorization.

212255020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10612760 (or 10612758 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 212255020 is about 14568.9745692688. The cubic root of 212255020 is about 596.5121905200.

The spelling of 212255020 in words is "two hundred twelve million, two hundred fifty-five thousand, twenty".