421221130200 has 192 divisors, whose sum is σ = 1562478640800. Its totient is φ = 103685184000.

The previous prime is 421221130189. The next prime is 421221130273. The reversal of 421221130200 is 2031122124.

It is a happy number.

421221130200 is a `hidden beast` number, since 421 + 2 + 2 + 11 + 30 + 200 = 666.

421221130200 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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, 2929951 + ... + 3070350.

Almost surely, 2^421221130200 is an apocalyptic number.

421221130200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421221130200 is an abundant number, since it is smaller than the sum of its proper divisors (1141257510600).

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

421221130200 is a wasteful number, since it uses less digits than its factorization.

421221130200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000339 (or 6000324 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 421221130200 its reverse (2031122124), we get a palindrome (423252252324).

The spelling of 421221130200 in words is "four hundred twenty-one billion, two hundred twenty-one million, one hundred thirty thousand, two hundred".