420120430212 has 48 divisors (see below), whose sum is σ = 1120369582080. Its totient is φ = 120029219232.

The previous prime is 420120430193. The next prime is 420120430217. The reversal of 420120430212 is 212034021024.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (420120430217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2117533 + ... + 2307419.

It is an arithmetic number, because the mean of its divisors is an integer number (23341032960).

Almost surely, 2^420120430212 is an apocalyptic number.

420120430212 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

420120430212 is an abundant number, since it is smaller than the sum of its proper divisors (700249151868).

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

420120430212 is a wasteful number, since it uses less digits than its factorization.

420120430212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216240 (or 216238 counting only the distinct ones).

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

Adding to 420120430212 its reverse (212034021024), we get a palindrome (632154451236).

The spelling of 420120430212 in words is "four hundred twenty billion, one hundred twenty million, four hundred thirty thousand, two hundred twelve".