12440012211 has 32 divisors (see below), whose sum is σ = 20359603200. Its totient is φ = 7443951840.

The previous prime is 12440012209. The next prime is 12440012213. The reversal of 12440012211 is 11221004421.

12440012211 is a `hidden beast` number, since 1 + 2 + 440 + 0 + 1 + 221 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (12440012209) and next prime (12440012213).

It is not a de Polignac number, because 12440012211 - 2¹ = 12440012209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12440012213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 241636 + ... + 288561.

It is an arithmetic number, because the mean of its divisors is an integer number (636237600).

Almost surely, 2^12440012211 is an apocalyptic number.

12440012211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12440012211 is a deficient number, since it is larger than the sum of its proper divisors (7919590989).

12440012211 is a wasteful number, since it uses less digits than its factorization.

12440012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530296 (or 530290 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12440012211 its reverse (11221004421), we get a palindrome (23661016632).

The spelling of 12440012211 in words is "twelve billion, four hundred forty million, twelve thousand, two hundred eleven".