212822020 has 24 divisors (see below), whose sum is σ = 447451200. Its totient is φ = 85028832.

The previous prime is 212822017. The next prime is 212822023. The reversal of 212822020 is 20228212.

It is an interprime number because it is at equal distance from previous prime (212822017) and next prime (212822023).

It is not an unprimeable number, because it can be changed into a prime (212822023) 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, 12591 + ... + 24169.

It is an arithmetic number, because the mean of its divisors is an integer number (18643800).

Almost surely, 2^212822020 is an apocalyptic number.

212822020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212822020 is an abundant number, since it is smaller than the sum of its proper divisors (234629180).

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

212822020 is a wasteful number, since it uses less digits than its factorization.

212822020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12507 (or 12505 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 212822020 is about 14588.4207507187. The cubic root of 212822020 is about 597.0428755610.

The spelling of 212822020 in words is "two hundred twelve million, eight hundred twenty-two thousand, twenty".