12421234020 has 48 divisors (see below), whose sum is σ = 37454800320. Its totient is φ = 3057534336.

The previous prime is 12421234013. The next prime is 12421234037. The reversal of 12421234020 is 2043212421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7961550 + ... + 7963109.

It is an arithmetic number, because the mean of its divisors is an integer number (780308340).

Almost surely, 2^12421234020 is an apocalyptic number.

12421234020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12421234020 is an abundant number, since it is smaller than the sum of its proper divisors (25033566300).

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

12421234020 is a wasteful number, since it uses less digits than its factorization.

12421234020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15924684 (or 15924682 counting only the distinct ones).

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

Adding to 12421234020 its reverse (2043212421), we get a palindrome (14464446441).

The spelling of 12421234020 in words is "twelve billion, four hundred twenty-one million, two hundred thirty-four thousand, twenty".