12222110122 has 4 divisors (see below), whose sum is σ = 18333165186. Its totient is φ = 6111055060.

The previous prime is 12222110111. The next prime is 12222110123. The reversal of 12222110122 is 22101122221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11909138641 + 312971481 = 109129^2 + 17691^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12222110096 and 12222110105.

It is not an unprimeable number, because it can be changed into a prime (12222110123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3055527529 + ... + 3055527532.

Almost surely, 2^12222110122 is an apocalyptic number.

12222110122 is a deficient number, since it is larger than the sum of its proper divisors (6111055064).

12222110122 is an equidigital number, since it uses as much as digits as its factorization.

12222110122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6111055063.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12222110122 its reverse (22101122221), we get a palindrome (34323232343).

The spelling of 12222110122 in words is "twelve billion, two hundred twenty-two million, one hundred ten thousand, one hundred twenty-two".