2216315181172 has 6 divisors (see below), whose sum is σ = 3878551567058. Its totient is φ = 1108157590584.

The previous prime is 2216315180993. The next prime is 2216315181239. The reversal of 2216315181172 is 2711815136122.

It can be written as a sum of positive squares in only one way, i.e., 2115174644496 + 101140536676 = 1454364^2 + 318026^2 .

It is a congruent 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 as a sum of consecutive naturals, namely, 277039397643 + ... + 277039397650.

Almost surely, 2^{2216315181172} is an apocalyptic number.

It is an amenable number.

2216315181172 is a deficient number, since it is larger than the sum of its proper divisors (1662236385886).

2216315181172 is a wasteful number, since it uses less digits than its factorization.

2216315181172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554078795297 (or 554078795295 counting only the distinct ones).

The product of its digits is 40320, while the sum is 40.

The spelling of 2216315181172 in words is "two trillion, two hundred sixteen billion, three hundred fifteen million, one hundred eighty-one thousand, one hundred seventy-two".