421120200000 has 336 divisors, whose sum is σ = 1398609108288. Its totient is φ = 111820800000.

The previous prime is 421120199987. The next prime is 421120200013. The reversal of 421120200000 is 2021124.

It is an interprime number because it is at equal distance from previous prime (421120199987) and next prime (421120200013).

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 154198635 + ... + 154201365.

It is an arithmetic number, because the mean of its divisors is an integer number (4162527108).

Almost surely, 2^421120200000 is an apocalyptic number.

421120200000 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 421120200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (699304554144).

421120200000 is an abundant number, since it is smaller than the sum of its proper divisors (977488908288).

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

421120200000 is an equidigital number, since it uses as much as digits as its factorization.

421120200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3028 (or 2998 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 421120200000 its reverse (2021124), we get a palindrome (421122221124).

The spelling of 421120200000 in words is "four hundred twenty-one billion, one hundred twenty million, two hundred thousand".