421620940120 has 32 divisors (see below), whose sum is σ = 948760419600. Its totient is φ = 168628233088.

The previous prime is 421620940109. The next prime is 421620940163. The reversal of 421620940120 is 21049026124.

It is a super-2 number, since 2×421620940120² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288094 + ... + 962413.

Almost surely, 2^421620940120 is an apocalyptic number.

421620940120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421620940120 is an abundant number, since it is smaller than the sum of its proper divisors (527139479480).

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

421620940120 is a wasteful number, since it uses less digits than its factorization.

421620940120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258947 (or 1258943 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 421620940120 its reverse (21049026124), we get a palindrome (442669966244).

The spelling of 421620940120 in words is "four hundred twenty-one billion, six hundred twenty million, nine hundred forty thousand, one hundred twenty".