12401212120 has 64 divisors (see below), whose sum is σ = 30708836640. Its totient is φ = 4469606400.

The previous prime is 12401212081. The next prime is 12401212121. The reversal of 12401212120 is 2121210421.

It is a junction number, because it is equal to n+sod(n) for n = 12401212094 and 12401212103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401212121) by changing a digit.

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, 74991 + ... + 174430.

Almost surely, 2^12401212120 is an apocalyptic number.

12401212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12401212120 is an abundant number, since it is smaller than the sum of its proper divisors (18307624520).

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

12401212120 is a wasteful number, since it uses less digits than its factorization.

12401212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249556 (or 249552 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12401212120 its reverse (2121210421), we get a palindrome (14522422541).

The spelling of 12401212120 in words is "twelve billion, four hundred one million, two hundred twelve thousand, one hundred twenty".