420121434012 has 48 divisors (see below), whose sum is σ = 1120449657600. Its totient is φ = 120021213312.

The previous prime is 420121433933. The next prime is 420121434017. The reversal of 420121434012 is 210434121024.

It is a super-2 number, since 2×420121434012² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420121434017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483763 + ... + 1036469.

It is an arithmetic number, because the mean of its divisors is an integer number (23342701200).

Almost surely, 2^420121434012 is an apocalyptic number.

420121434012 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

420121434012 is an abundant number, since it is smaller than the sum of its proper divisors (700328223588).

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

420121434012 is a wasteful number, since it uses less digits than its factorization.

420121434012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561770 (or 561768 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 420121434012 its reverse (210434121024), we get a palindrome (630555555036).

The spelling of 420121434012 in words is "four hundred twenty billion, one hundred twenty-one million, four hundred thirty-four thousand, twelve".