212885130 has 32 divisors (see below), whose sum is σ = 518554944. Its totient is φ = 55921536.

The previous prime is 212885129. The next prime is 212885149. The reversal of 212885130 is 31588212.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 15 ways as a sum of consecutive naturals, for example, 50947 + ... + 54966.

It is an arithmetic number, because the mean of its divisors is an integer number (16204842).

Almost surely, 2^212885130 is an apocalyptic number.

212885130 is an abundant number, since it is smaller than the sum of its proper divisors (305669814).

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

212885130 is a wasteful number, since it uses less digits than its factorization.

212885130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105990.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 212885130 is about 14590.5836072448. The cubic root of 212885130 is about 597.1018852005.

The spelling of 212885130 in words is "two hundred twelve million, eight hundred eighty-five thousand, one hundred thirty".