22208444936 has 8 divisors (see below), whose sum is σ = 41640834270. Its totient is φ = 11104222464.

The previous prime is 22208444933. The next prime is 22208444969. The reversal of 22208444936 is 63944480222.

It can be written as a sum of positive squares in only one way, i.e., 17448824836 + 4759620100 = 132094^2 + 68990^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (22208444933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1388027801 + ... + 1388027816.

Almost surely, 2^22208444936 is an apocalyptic number.

It is an amenable number.

22208444936 is a deficient number, since it is larger than the sum of its proper divisors (19432389334).

22208444936 is a wasteful number, since it uses less digits than its factorization.

22208444936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2776055623 (or 2776055619 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 44.

The spelling of 22208444936 in words is "twenty-two billion, two hundred eight million, four hundred forty-four thousand, nine hundred thirty-six".