22228642692 has 36 divisors (see below), whose sum is σ = 56312062716. Its totient is φ = 7393328640.

The previous prime is 22228642691. The next prime is 22228642703. The reversal of 22228642692 is 29624682222.

It can be written as a sum of positive squares in 2 ways, for example, as 17863926336 + 4364716356 = 133656^2 + 66066^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×22228642692² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22228642691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 659109 + ... + 692012.

Almost surely, 2^22228642692 is an apocalyptic number.

It is an amenable number.

22228642692 is an abundant number, since it is smaller than the sum of its proper divisors (34083420024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22228642692 is a wasteful number, since it uses less digits than its factorization.

22228642692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351588 (or 1351583 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The spelling of 22228642692 in words is "twenty-two billion, two hundred twenty-eight million, six hundred forty-two thousand, six hundred ninety-two".