72220712011 has 16 divisors (see below), whose sum is σ = 86696967168. Its totient is φ = 58819860000.

The previous prime is 72220711961. The next prime is 72220712023. The reversal of 72220712011 is 11021702227.

It is a cyclic number.

It is not a de Polignac number, because 72220712011 - 2⁷ = 72220711883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72220712611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1461040 + ... + 1509661.

It is an arithmetic number, because the mean of its divisors is an integer number (5418560448).

Almost surely, 2^72220712011 is an apocalyptic number.

72220712011 is a deficient number, since it is larger than the sum of its proper divisors (14476255157).

72220712011 is a wasteful number, since it uses less digits than its factorization.

72220712011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970882.

The product of its (nonzero) digits is 784, while the sum is 25.

The spelling of 72220712011 in words is "seventy-two billion, two hundred twenty million, seven hundred twelve thousand, eleven".