12420211244 has 24 divisors (see below), whose sum is σ = 24970487808. Its totient is φ = 5295076560.

The previous prime is 12420211201. The next prime is 12420211247. The reversal of 12420211244 is 44211202421.

It is not an unprimeable number, because it can be changed into a prime (12420211247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1155854 + ... + 1166549.

It is an arithmetic number, because the mean of its divisors is an integer number (1040436992).

Almost surely, 2^12420211244 is an apocalyptic number.

12420211244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12420211244 is an abundant number, since it is smaller than the sum of its proper divisors (12550276564).

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

12420211244 is a wasteful number, since it uses less digits than its factorization.

12420211244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322605 (or 2322603 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 12420211244 its reverse (44211202421), we get a palindrome (56631413665).

The spelling of 12420211244 in words is "twelve billion, four hundred twenty million, two hundred eleven thousand, two hundred forty-four".