421204113200 has 120 divisors (see below), whose sum is σ = 1093226726928. Its totient is φ = 155030307840.

The previous prime is 421204113191. The next prime is 421204113227. The reversal of 421204113200 is 2311402124.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1520639 + ... + 1776161.

Almost surely, 2^421204113200 is an apocalyptic number.

421204113200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421204113200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (546613363464).

421204113200 is an abundant number, since it is smaller than the sum of its proper divisors (672022613728).

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

421204113200 is a wasteful number, since it uses less digits than its factorization.

421204113200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255871 (or 255860 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 421204113200 its reverse (2311402124), we get a palindrome (423515515324).

The spelling of 421204113200 in words is "four hundred twenty-one billion, two hundred four million, one hundred thirteen thousand, two hundred".