22231322012100 has 144 divisors (see below), whose sum is σ = 66176951640128. Its totient is φ = 5759871068160.

The previous prime is 22231322012083. The next prime is 22231322012111. The reversal of 22231322012100 is 121022313222.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6108289 + ... + 9042888.

Almost surely, 2^{22231322012100} is an apocalyptic number.

22231322012100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22231322012100 is an abundant number, since it is smaller than the sum of its proper divisors (43945629628028).

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

22231322012100 is a wasteful number, since it uses less digits than its factorization.

22231322012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15151334 (or 15151327 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 22231322012100 its reverse (121022313222), we get a palindrome (22352344325322).

The spelling of 22231322012100 in words is "twenty-two trillion, two hundred thirty-one billion, three hundred twenty-two million, twelve thousand, one hundred".