12222432340 has 24 divisors (see below), whose sum is σ = 26018715240. Its totient is φ = 4822000128.

The previous prime is 12222432337. The next prime is 12222432361. The reversal of 12222432340 is 4323422221.

It can be written as a sum of positive squares in 4 ways, for example, as 2675579076 + 9546853264 = 51726^2 + 97708^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4184305 + ... + 4187224.

It is an arithmetic number, because the mean of its divisors is an integer number (1084113135).

Almost surely, 2^12222432340 is an apocalyptic number.

12222432340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222432340 is an abundant number, since it is smaller than the sum of its proper divisors (13796282900).

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

12222432340 is a wasteful number, since it uses less digits than its factorization.

12222432340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8371611 (or 8371609 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 12222432340 its reverse (4323422221), we get a palindrome (16545854561).

The spelling of 12222432340 in words is "twelve billion, two hundred twenty-two million, four hundred thirty-two thousand, three hundred forty".