212771130 has 64 divisors (see below), whose sum is σ = 599937408. Its totient is φ = 47612160.

The previous prime is 212771123. The next prime is 212771131. The reversal of 212771130 is 31177212.

212771130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212771130² = 90543107522953800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212771130.

It is not an unprimeable number, because it can be changed into a prime (212771131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20509 + ... + 29088.

It is an arithmetic number, because the mean of its divisors is an integer number (9374022).

Almost surely, 2^212771130 is an apocalyptic number.

212771130 is an abundant number, since it is smaller than the sum of its proper divisors (387166278).

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

212771130 is a wasteful number, since it uses less digits than its factorization.

212771130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49631.

The product of its (nonzero) digits is 588, while the sum is 24.

The square root of 212771130 is about 14586.6764549023. The cubic root of 212771130 is about 596.9952834713.

The spelling of 212771130 in words is "two hundred twelve million, seven hundred seventy-one thousand, one hundred thirty".