212556130 has 8 divisors (see below), whose sum is σ = 382601052. Its totient is φ = 85022448.

The previous prime is 212556121. The next prime is 212556131. The reversal of 212556130 is 31655212.

212556130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 206410689 + 6145441 = 14367^2 + 2479^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 212556095 and 212556104.

It is not an unprimeable number, because it can be changed into a prime (212556131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10627797 + ... + 10627816.

Almost surely, 2^212556130 is an apocalyptic number.

212556130 is a deficient number, since it is larger than the sum of its proper divisors (170044922).

212556130 is a wasteful number, since it uses less digits than its factorization.

212556130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21255620.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 212556130 is about 14579.3048531129. The cubic root of 212556130 is about 596.7941326806.

The spelling of 212556130 in words is "two hundred twelve million, five hundred fifty-six thousand, one hundred thirty".