2215612919970 has 48 divisors (see below), whose sum is σ = 5760943860672. Its totient is φ = 590794187040.

The previous prime is 2215612919969. The next prime is 2215612920011. The reversal of 2215612919970 is 799192165122.

It is a happy number.

2215612919970 is a `hidden beast` number, since 2 + 2 + 1 + 5 + 612 + 9 + 19 + 9 + 7 + 0 = 666.

It is a super-2 number, since 2×2215612919970² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

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 23 ways as a sum of consecutive naturals, for example, 756669 + ... + 2236911.

It is an arithmetic number, because the mean of its divisors is an integer number (120019663764).

Almost surely, 2^{2215612919970} is an apocalyptic number.

2215612919970 is an abundant number, since it is smaller than the sum of its proper divisors (3545330940702).

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

2215612919970 is a wasteful number, since it uses less digits than its factorization.

2215612919970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496887 (or 1496884 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 54.

The spelling of 2215612919970 in words is "two trillion, two hundred fifteen billion, six hundred twelve million, nine hundred nineteen thousand, nine hundred seventy".