12412120440 has 32 divisors (see below), whose sum is σ = 37236361680. Its totient is φ = 3309898752.

The previous prime is 12412120433. The next prime is 12412120451. The reversal of 12412120440 is 4402121421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51717049 + ... + 51717288.

Almost surely, 2^12412120440 is an apocalyptic number.

12412120440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12412120440 is an abundant number, since it is smaller than the sum of its proper divisors (24824241240).

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

12412120440 is a wasteful number, since it uses less digits than its factorization.

12412120440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103434351 (or 103434347 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12412120440 its reverse (4402121421), we get a palindrome (16814241861).

The spelling of 12412120440 in words is "twelve billion, four hundred twelve million, one hundred twenty thousand, four hundred forty".