22201221001100 has 72 divisors (see below), whose sum is σ = 48288441269040. Its totient is φ = 8859886801920.

The previous prime is 22201221001097. The next prime is 22201221001117. The reversal of 22201221001100 is 110012210222.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 401172632 + ... + 401227968.

Almost surely, 2^{22201221001100} is an apocalyptic number.

22201221001100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22201221001100 is an abundant number, since it is smaller than the sum of its proper divisors (26087220267940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22201221001100 is a wasteful number, since it uses less digits than its factorization.

22201221001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64587 (or 64580 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22201221001100 its reverse (110012210222), we get a palindrome (22311233211322).

The spelling of 22201221001100 in words is "twenty-two trillion, two hundred one billion, two hundred twenty-one million, one thousand, one hundred".