12222111022 has 12 divisors (see below), whose sum is σ = 20151332208. Its totient is φ = 5555504900.

The previous prime is 12222111007. The next prime is 12222111023. The reversal of 12222111022 is 22011122221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12222110987 and 12222111005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222111023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25252054 + ... + 25252537.

It is an arithmetic number, because the mean of its divisors is an integer number (1679277684).

Almost surely, 2^12222111022 is an apocalyptic number.

12222111022 is a deficient number, since it is larger than the sum of its proper divisors (7929221186).

12222111022 is a wasteful number, since it uses less digits than its factorization.

12222111022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50504615 (or 50504604 counting only the distinct ones).

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

Adding to 12222111022 its reverse (22011122221), we get a palindrome (34233233243).

The spelling of 12222111022 in words is "twelve billion, two hundred twenty-two million, one hundred eleven thousand, twenty-two".