215240234212 has 12 divisors (see below), whose sum is σ = 378359516416. Its totient is φ = 107137515240.

The previous prime is 215240234057. The next prime is 215240234221. The reversal of 215240234212 is 212432042512.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120649464 + ... + 120651247.

Almost surely, 2^215240234212 is an apocalyptic number.

It is an amenable number.

215240234212 is a deficient number, since it is larger than the sum of its proper divisors (163119282204).

215240234212 is a wasteful number, since it uses less digits than its factorization.

215240234212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241300938 (or 241300936 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 215240234212 its reverse (212432042512), we get a palindrome (427672276724).

The spelling of 215240234212 in words is "two hundred fifteen billion, two hundred forty million, two hundred thirty-four thousand, two hundred twelve".