423010221220 has 24 divisors (see below), whose sum is σ = 888353250624. Its totient is φ = 169198034016.

The previous prime is 423010221209. The next prime is 423010221223. The reversal of 423010221220 is 22122010324.

It is not an unprimeable number, because it can be changed into a prime (423010221223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217387 + ... + 945133.

It is an arithmetic number, because the mean of its divisors is an integer number (37014718776).

Almost surely, 2^423010221220 is an apocalyptic number.

It is an amenable number.

423010221220 is an abundant number, since it is smaller than the sum of its proper divisors (465343029404).

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

423010221220 is a wasteful number, since it uses less digits than its factorization.

423010221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756819 (or 756817 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 423010221220 its reverse (22122010324), we get a palindrome (445132231544).

The spelling of 423010221220 in words is "four hundred twenty-three billion, ten million, two hundred twenty-one thousand, two hundred twenty".