12222342423 has 32 divisors (see below), whose sum is σ = 19690499520. Its totient is φ = 7461642240.

The previous prime is 12222342413. The next prime is 12222342427. The reversal of 12222342423 is 32424322221.

12222342423 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 234 + 2 + 423 = 666.

It is not a de Polignac number, because 12222342423 - 2¹⁶ = 12222276887 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 (12222342427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 342858 + ... + 376823.

It is an arithmetic number, because the mean of its divisors is an integer number (615328110).

Almost surely, 2^12222342423 is an apocalyptic number.

12222342423 is a deficient number, since it is larger than the sum of its proper divisors (7468157097).

12222342423 is a wasteful number, since it uses less digits than its factorization.

12222342423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719744 (or 719738 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

Adding to 12222342423 its reverse (32424322221), we get a palindrome (44646664644).

The spelling of 12222342423 in words is "twelve billion, two hundred twenty-two million, three hundred forty-two thousand, four hundred twenty-three".