722225229 has 32 divisors (see below), whose sum is σ = 1120542336. Its totient is φ = 408913920.

The previous prime is 722225219. The next prime is 722225233. The reversal of 722225229 is 922522227.

It is not a de Polignac number, because 722225229 - 2⁴ = 722225213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 722225229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722225219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72159 + ... + 81555.

It is an arithmetic number, because the mean of its divisors is an integer number (35016948).

Almost surely, 2^722225229 is an apocalyptic number.

It is an amenable number.

722225229 is a deficient number, since it is larger than the sum of its proper divisors (398317107).

722225229 is a wasteful number, since it uses less digits than its factorization.

722225229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9565.

The product of its digits is 20160, while the sum is 33.

The square root of 722225229 is about 26874.2484360028. The cubic root of 722225229 is about 897.2033470993.

The spelling of 722225229 in words is "seven hundred twenty-two million, two hundred twenty-five thousand, two hundred twenty-nine".