22064221136 has 40 divisors (see below), whose sum is σ = 42927851400. Its totient is φ = 10986153984.

The previous prime is 22064221121. The next prime is 22064221147. The reversal of 22064221136 is 63112246022.

It can be written as a sum of positive squares in 4 ways, for example, as 4348611136 + 17715610000 = 65944^2 + 133100^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22064221099 and 22064221108.

It is a congruent number.

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, 5230100 + ... + 5234316.

It is an arithmetic number, because the mean of its divisors is an integer number (1073196285).

Almost surely, 2^22064221136 is an apocalyptic number.

It is an amenable number.

22064221136 is a deficient number, since it is larger than the sum of its proper divisors (20863630264).

22064221136 is a wasteful number, since it uses less digits than its factorization.

22064221136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5511 (or 5505 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 22064221136 its reverse (63112246022), we get a palindrome (85176467158).

The spelling of 22064221136 in words is "twenty-two billion, sixty-four million, two hundred twenty-one thousand, one hundred thirty-six".