12102122222 has 16 divisors (see below), whose sum is σ = 18342374832. Its totient is φ = 5988118080.

The previous prime is 12102122203. The next prime is 12102122243. The reversal of 12102122222 is 22222120121.

It is a happy number.

It is a super-2 number, since 2×12102122222² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12102122222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174272 + ... + 233612.

It is an arithmetic number, because the mean of its divisors is an integer number (1146398427).

Almost surely, 2^12102122222 is an apocalyptic number.

12102122222 is a deficient number, since it is larger than the sum of its proper divisors (6240252610).

12102122222 is a wasteful number, since it uses less digits than its factorization.

12102122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60403.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12102122222 its reverse (22222120121), we get a palindrome (34324242343).

The spelling of 12102122222 in words is "twelve billion, one hundred two million, one hundred twenty-two thousand, two hundred twenty-two".