212152100 has 36 divisors (see below), whose sum is σ = 484604400. Its totient is φ = 80393760.

The previous prime is 212152099. The next prime is 212152159. The reversal of 212152100 is 1251212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53930 + ... + 57729.

Almost surely, 2^212152100 is an apocalyptic number.

212152100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212152100 is an abundant number, since it is smaller than the sum of its proper divisors (272452300).

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

212152100 is a wasteful number, since it uses less digits than its factorization.

212152100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111692 (or 111685 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 212152100 is about 14565.4419775028. The cubic root of 212152100 is about 596.4157609825.

The spelling of 212152100 in words is "two hundred twelve million, one hundred fifty-two thousand, one hundred".