421222004100 has 108 divisors (see below), whose sum is σ = 1348388530944. Its totient is φ = 109935944640.

The previous prime is 421222004089. The next prime is 421222004113. The reversal of 421222004100 is 1400222124.

421222004100 is a `hidden beast` number, since 42 + 12 + 2 + 200 + 410 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4936684 + ... + 5021283.

Almost surely, 2^421222004100 is an apocalyptic number.

It is an amenable number.

421222004100 is an abundant number, since it is smaller than the sum of its proper divisors (927166526844).

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

421222004100 is a wasteful number, since it uses less digits than its factorization.

421222004100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9958034 (or 9958024 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 421222004100 its reverse (1400222124), we get a palindrome (422622226224).

The spelling of 421222004100 in words is "four hundred twenty-one billion, two hundred twenty-two million, four thousand, one hundred".