12111202022222 has 64 divisors (see below), whose sum is σ = 19813537656000. Its totient is φ = 5531450867712.

The previous prime is 12111202022203. The next prime is 12111202022237. The reversal of 12111202022222 is 22222020211121.

It is a junction number, because it is equal to n+sod(n) for n = 12111202022194 and 12111202022203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35120654 + ... + 35463822.

It is an arithmetic number, because the mean of its divisors is an integer number (309586525875).

Almost surely, 2^{12111202022222} is an apocalyptic number.

12111202022222 is a deficient number, since it is larger than the sum of its proper divisors (7702335633778).

12111202022222 is a wasteful number, since it uses less digits than its factorization.

12111202022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343493.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12111202022222 its reverse (22222020211121), we get a palindrome (34333222233343).

The spelling of 12111202022222 in words is "twelve trillion, one hundred eleven billion, two hundred two million, twenty-two thousand, two hundred twenty-two".