12421112120 has 64 divisors (see below), whose sum is σ = 28313232480. Its totient is φ = 4903773696.

The previous prime is 12421112083. The next prime is 12421112131. The reversal of 12421112120 is 2121112421.

It is a super-2 number, since 2×12421112120² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1180322 + ... + 1190798.

Almost surely, 2^12421112120 is an apocalyptic number.

12421112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12421112120 is an abundant number, since it is smaller than the sum of its proper divisors (15892120360).

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

12421112120 is a wasteful number, since it uses less digits than its factorization.

12421112120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10872 (or 10868 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12421112120 its reverse (2121112421), we get a palindrome (14542224541).

The spelling of 12421112120 in words is "twelve billion, four hundred twenty-one million, one hundred twelve thousand, one hundred twenty".