22201200221000 has 32 divisors (see below), whose sum is σ = 51950808519480. Its totient is φ = 8880480088000.

The previous prime is 22201200220999. The next prime is 22201200221023. The reversal of 22201200221000 is 12200210222.

It can be written as a sum of positive squares in 4 ways, for example, as 13379076538564 + 8822123682436 = 3657742^2 + 2970206^2 .

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, 11100599111 + ... + 11100601110.

Almost surely, 2^{22201200221000} is an apocalyptic number.

22201200221000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22201200221000 is an abundant number, since it is smaller than the sum of its proper divisors (29749608298480).

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

22201200221000 is a wasteful number, since it uses less digits than its factorization.

22201200221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22201200242 (or 22201200228 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22201200221000 its reverse (12200210222), we get a palindrome (22213400431222).

The spelling of 22201200221000 in words is "twenty-two trillion, two hundred one billion, two hundred million, two hundred twenty-one thousand".