22228926613 has 4 divisors (see below), whose sum is σ = 22593335308. Its totient is φ = 21864517920.

The previous prime is 22228926607. The next prime is 22228926631. The reversal of 22228926613 is 31662982222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2836414564 + 19392512049 = 53258^2 + 139257^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22228926613 is a prime.

It is a super-2 number, since 2×22228926613² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22228926613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22228926673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182204256 + ... + 182204377.

It is an arithmetic number, because the mean of its divisors is an integer number (5648333827).

Almost surely, 2^22228926613 is an apocalyptic number.

It is an amenable number.

22228926613 is a deficient number, since it is larger than the sum of its proper divisors (364408695).

22228926613 is an equidigital number, since it uses as much as digits as its factorization.

22228926613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364408694.

The product of its digits is 248832, while the sum is 43.

The spelling of 22228926613 in words is "twenty-two billion, two hundred twenty-eight million, nine hundred twenty-six thousand, six hundred thirteen".