22197908036 has 12 divisors (see below), whose sum is σ = 39378481212. Its totient is φ = 10946913408.

The previous prime is 22197908027. The next prime is 22197908039. The reversal of 22197908036 is 63080979122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18688530436 + 3509377600 = 136706^2 + 59240^2 .

It is not an unprimeable number, because it can be changed into a prime (22197908039) 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, 38009825 + ... + 38010408.

It is an arithmetic number, because the mean of its divisors is an integer number (3281540101).

Almost surely, 2^22197908036 is an apocalyptic number.

It is an amenable number.

22197908036 is a deficient number, since it is larger than the sum of its proper divisors (17180573176).

22197908036 is a wasteful number, since it uses less digits than its factorization.

22197908036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76020310 (or 76020308 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 22197908036 in words is "twenty-two billion, one hundred ninety-seven million, nine hundred eight thousand, thirty-six".