12212440234 has 16 divisors (see below), whose sum is σ = 18750771072. Its totient is φ = 5962275648.

The previous prime is 12212440231. The next prime is 12212440237. The reversal of 12212440234 is 43204421221.

It is an interprime number because it is at equal distance from previous prime (12212440231) and next prime (12212440237).

It is a junction number, because it is equal to n+sod(n) for n = 12212440199 and 12212440208.

It is not an unprimeable number, because it can be changed into a prime (12212440231) 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 7 ways as a sum of consecutive naturals, for example, 263487 + ... + 306349.

It is an arithmetic number, because the mean of its divisors is an integer number (1171923192).

Almost surely, 2^12212440234 is an apocalyptic number.

12212440234 is a deficient number, since it is larger than the sum of its proper divisors (6538330838).

12212440234 is a wasteful number, since it uses less digits than its factorization.

12212440234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46221.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 12212440234 its reverse (43204421221), we get a palindrome (55416861455).

The spelling of 12212440234 in words is "twelve billion, two hundred twelve million, four hundred forty thousand, two hundred thirty-four".