12222252344 has 8 divisors (see below), whose sum is σ = 22916723160. Its totient is φ = 6111126168.

The previous prime is 12222252331. The next prime is 12222252389. The reversal of 12222252344 is 44325222221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 763890764 + ... + 763890779.

It is an arithmetic number, because the mean of its divisors is an integer number (2864590395).

Almost surely, 2^12222252344 is an apocalyptic number.

It is an amenable number.

12222252344 is a deficient number, since it is larger than the sum of its proper divisors (10694470816).

12222252344 is a wasteful number, since it uses less digits than its factorization.

12222252344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527781549 (or 1527781545 counting only the distinct ones).

The product of its digits is 15360, while the sum is 29.

Adding to 12222252344 its reverse (44325222221), we get a palindrome (56547474565).

The spelling of 12222252344 in words is "twelve billion, two hundred twenty-two million, two hundred fifty-two thousand, three hundred forty-four".