722262122 has 16 divisors (see below), whose sum is σ = 1094967720. Its totient is φ = 357283008.

The previous prime is 722262071. The next prime is 722262157. The reversal of 722262122 is 221262227.

It can be written as a sum of positive squares in 4 ways, for example, as 650199001 + 72063121 = 25499^2 + 8489^2 .

It is a junction number, because it is equal to n+sod(n) for n = 722262091 and 722262100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171668 + ... + 175824.

Almost surely, 2^722262122 is an apocalyptic number.

722262122 is a deficient number, since it is larger than the sum of its proper divisors (372705598).

722262122 is a wasteful number, since it uses less digits than its factorization.

722262122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5065.

The product of its digits is 2688, while the sum is 26.

The square root of 722262122 is about 26874.9348278280. The cubic root of 722262122 is about 897.2186239401.

The spelling of 722262122 in words is "seven hundred twenty-two million, two hundred sixty-two thousand, one hundred twenty-two".