220231222130100 has 72 divisors (see below), whose sum is σ = 637772795671648. Its totient is φ = 58675748976000.

The previous prime is 220231222130099. The next prime is 220231222130111. The reversal of 220231222130100 is 1031222132022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 328270126 + ... + 328940325.

Almost surely, 2^{220231222130100} is an apocalyptic number.

220231222130100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220231222130100 is an abundant number, since it is smaller than the sum of its proper divisors (417541573541548).

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

220231222130100 is a wasteful number, since it uses less digits than its factorization.

220231222130100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657211585 (or 657211578 counting only the distinct ones).

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

Adding to 220231222130100 its reverse (1031222132022), we get a palindrome (221262444262122).

The spelling of 220231222130100 in words is "two hundred twenty trillion, two hundred thirty-one billion, two hundred twenty-two million, one hundred thirty thousand, one hundred".