20120215100008 has 16 divisors (see below), whose sum is σ = 37859657421060. Its totient is φ = 10024306454400.

The previous prime is 20120215099993. The next prime is 20120215100021. The reversal of 20120215100008 is 80000151202102.

It can be written as a sum of positive squares in 2 ways, for example, as 17238090926884 + 2882124173124 = 4151878^2 + 1697682^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4475134563 + ... + 4475139058.

Almost surely, 2^{20120215100008} is an apocalyptic number.

It is an amenable number.

20120215100008 is a deficient number, since it is larger than the sum of its proper divisors (17739442321052).

20120215100008 is a wasteful number, since it uses less digits than its factorization.

20120215100008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8950273908 (or 8950273904 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The spelling of 20120215100008 in words is "twenty trillion, one hundred twenty billion, two hundred fifteen million, one hundred thousand, eight".