9722222279 has 16 divisors (see below), whose sum is σ = 12125203200. Its totient is φ = 7573263360.

The previous prime is 9722222249. The next prime is 9722222281.

9722222279 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9722222279 is a prime.

It is a super-3 number, since 3×9722222279³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9722222249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234887 + ... + 273159.

It is an arithmetic number, because the mean of its divisors is an integer number (757825200).

Almost surely, 2^9722222279 is an apocalyptic number.

9722222279 is a deficient number, since it is larger than the sum of its proper divisors (2402980921).

9722222279 is a wasteful number, since it uses less digits than its factorization.

9722222279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41590.

The product of its digits is 254016, while the sum is 44.

The square root of 9722222279 is about 98601.3300062428. The cubic root of 9722222279 is about 2134.2986124673.

The spelling of 9722222279 in words is "nine billion, seven hundred twenty-two million, two hundred twenty-two thousand, two hundred seventy-nine".