421222120100 has 36 divisors (see below), whose sum is σ = 914080297200. Its totient is φ = 168483632160.

The previous prime is 421222120093. The next prime is 421222120153. The reversal of 421222120100 is 1021222124.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5862191 + ... + 5933609.

Almost surely, 2^421222120100 is an apocalyptic number.

It is an amenable number.

421222120100 is an abundant number, since it is smaller than the sum of its proper divisors (492858177100).

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

421222120100 is a wasteful number, since it uses less digits than its factorization.

421222120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130412 (or 130405 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 421222120100 its reverse (1021222124), we get a palindrome (422243342224).

The spelling of 421222120100 in words is "four hundred twenty-one billion, two hundred twenty-two million, one hundred twenty thousand, one hundred".