12222420123 has 32 divisors (see below), whose sum is σ = 17107085632. Its totient is φ = 7754227200.

The previous prime is 12222420109. The next prime is 12222420163. The reversal of 12222420123 is 32102422221.

It is not a de Polignac number, because 12222420123 - 2¹² = 12222416027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12222420123.

It is not an unprimeable number, because it can be changed into a prime (12222420103) 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, 1220565 + ... + 1230537.

It is an arithmetic number, because the mean of its divisors is an integer number (534596426).

Almost surely, 2^12222420123 is an apocalyptic number.

12222420123 is a deficient number, since it is larger than the sum of its proper divisors (4884665509).

12222420123 is a wasteful number, since it uses less digits than its factorization.

12222420123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10255.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12222420123 its reverse (32102422221), we get a palindrome (44324842344).

The spelling of 12222420123 in words is "twelve billion, two hundred twenty-two million, four hundred twenty thousand, one hundred twenty-three".