72220002227 has 16 divisors (see below), whose sum is σ = 75038170272. Its totient is φ = 69472339200.

The previous prime is 72220002199. The next prime is 72220002251.

72220002227 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 72220002227 - 2⁶ = 72220002163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72220002196 and 72220002205.

It is not an unprimeable number, because it can be changed into a prime (72220005227) 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, 420893 + ... + 567089.

It is an arithmetic number, because the mean of its divisors is an integer number (4689885642).

Almost surely, 2^72220002227 is an apocalyptic number.

72220002227 is a deficient number, since it is larger than the sum of its proper divisors (2818168045).

72220002227 is a wasteful number, since it uses less digits than its factorization.

72220002227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146438.

The product of its (nonzero) digits is 3136, while the sum is 26.

It can be divided in two parts, 7222000 and 2227, that added together give a palindrome (7224227).

The spelling of 72220002227 in words is "seventy-two billion, two hundred twenty million, two thousand, two hundred twenty-seven".