12222252345 has 16 divisors (see below), whose sum is σ = 19803144960. Its totient is φ = 6436020864.

The previous prime is 12222252331. The next prime is 12222252389. The reversal of 12222252345 is 54325222221.

It is a happy number.

It is not a de Polignac number, because 12222252345 - 2⁵ = 12222252313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5155884 + ... + 5158253.

It is an arithmetic number, because the mean of its divisors is an integer number (1237696560).

Almost surely, 2^12222252345 is an apocalyptic number.

12222252345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12222252345 is a deficient number, since it is larger than the sum of its proper divisors (7580892615).

12222252345 is a wasteful number, since it uses less digits than its factorization.

12222252345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10314224.

The product of its digits is 19200, while the sum is 30.

Adding to 12222252345 its reverse (54325222221), we get a palindrome (66547474566).

The spelling of 12222252345 in words is "twelve billion, two hundred twenty-two million, two hundred fifty-two thousand, three hundred forty-five".