212056200 has 72 divisors (see below), whose sum is σ = 712161450. Its totient is φ = 56547840.

The previous prime is 212056193. The next prime is 212056231. The reversal of 212056200 is 2650212.

212056200 is a `hidden beast` number, since 21 + 20 + 5 + 620 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 195944004 + 16112196 = 13998^2 + 4014^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 57105 + ... + 60704.

Almost surely, 2^212056200 is an apocalyptic number.

212056200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212056200 is an abundant number, since it is smaller than the sum of its proper divisors (500105250).

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

212056200 is a wasteful number, since it uses less digits than its factorization.

212056200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117831 (or 117819 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 212056200 is about 14562.1495665990. The cubic root of 212056200 is about 596.3258806688.

The spelling of 212056200 in words is "two hundred twelve million, fifty-six thousand, two hundred".