12222153423 has 20 divisors (see below), whose sum is σ = 18703101648. Its totient is φ = 7949365920.

The previous prime is 12222153397. The next prime is 12222153439. The reversal of 12222153423 is 32435122221.

12222153423 is a `hidden beast` number, since 1 + 2 + 22 + 215 + 3 + 423 = 666.

It is not a de Polignac number, because 12222153423 - 2²⁵ = 12188598991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222154423) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1836811 + ... + 1843452.

Almost surely, 2^12222153423 is an apocalyptic number.

12222153423 is a deficient number, since it is larger than the sum of its proper divisors (6480948225).

12222153423 is an equidigital number, since it uses as much as digits as its factorization.

12222153423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680316 (or 3680307 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

Adding to 12222153423 its reverse (32435122221), we get a palindrome (44657275644).

The spelling of 12222153423 in words is "twelve billion, two hundred twenty-two million, one hundred fifty-three thousand, four hundred twenty-three".