22201001188 has 6 divisors (see below), whose sum is σ = 38851752086. Its totient is φ = 11100500592.

The previous prime is 22201001167. The next prime is 22201001189. The reversal of 22201001188 is 88110010222.

It can be written as a sum of positive squares in only one way, i.e., 19281544164 + 2919457024 = 138858^2 + 54032^2 .

It is a super-2 number, since 2×22201001188² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22201001189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775125145 + ... + 2775125152.

Almost surely, 2^22201001188 is an apocalyptic number.

It is an amenable number.

22201001188 is a deficient number, since it is larger than the sum of its proper divisors (16650750898).

22201001188 is a wasteful number, since it uses less digits than its factorization.

22201001188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5550250301 (or 5550250299 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 25.

The spelling of 22201001188 in words is "twenty-two billion, two hundred one million, one thousand, one hundred eighty-eight".