22122564404 has 12 divisors (see below), whose sum is σ = 38722313700. Its totient is φ = 11059046208.

The previous prime is 22122564397. The next prime is 22122564407. The reversal of 22122564404 is 40446522122.

It can be written as a sum of positive squares in 2 ways, for example, as 15990108304 + 6132456100 = 126452^2 + 78310^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122564407) 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 3 ways as a sum of consecutive naturals, for example, 536639 + ... + 576390.

It is an arithmetic number, because the mean of its divisors is an integer number (3226859475).

Almost surely, 2^22122564404 is an apocalyptic number.

It is an amenable number.

22122564404 is a deficient number, since it is larger than the sum of its proper divisors (16599749296).

22122564404 is a wasteful number, since it uses less digits than its factorization.

22122564404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118002 (or 1118000 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

The spelling of 22122564404 in words is "twenty-two billion, one hundred twenty-two million, five hundred sixty-four thousand, four hundred four".