421034210220 has 96 divisors (see below), whose sum is σ = 1271063521728. Its totient is φ = 103518093312.

The previous prime is 421034210213. The next prime is 421034210281. The reversal of 421034210220 is 22012430124.

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 31 ways as a sum of consecutive naturals, for example, 353532 + ... + 983388.

It is an arithmetic number, because the mean of its divisors is an integer number (13240245018).

Almost surely, 2^421034210220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421034210220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (635531760864).

421034210220 is an abundant number, since it is smaller than the sum of its proper divisors (850029311508).

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

421034210220 is a wasteful number, since it uses less digits than its factorization.

421034210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630739 (or 630737 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 421034210220 its reverse (22012430124), we get a palindrome (443046640344).

The spelling of 421034210220 in words is "four hundred twenty-one billion, thirty-four million, two hundred ten thousand, two hundred twenty".