215044012 has 6 divisors (see below), whose sum is σ = 376327028. Its totient is φ = 107522004.

The previous prime is 215044003. The next prime is 215044013. The reversal of 215044012 is 210440512.

It is a super-2 number, since 2×215044012² = 92487854194112288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (215044013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26880498 + ... + 26880505.

Almost surely, 2^215044012 is an apocalyptic number.

It is an amenable number.

215044012 is a deficient number, since it is larger than the sum of its proper divisors (161283016).

215044012 is a wasteful number, since it uses less digits than its factorization.

215044012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53761007 (or 53761005 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 215044012 is about 14664.3790185606. The cubic root of 215044012 is about 599.1135168169.

Adding to 215044012 its reverse (210440512), we get a palindrome (425484524).

The spelling of 215044012 in words is "two hundred fifteen million, forty-four thousand, twelve".