12111021111122 has 16 divisors (see below), whose sum is σ = 18287102246400. Its totient is φ = 6015321513600.

The previous prime is 12111021111113. The next prime is 12111021111143. The reversal of 12111021111122 is 22111112011121.

It is a self number, because there is not a number n which added to its sum of digits gives 12111021111122.

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, 24250754 + ... + 24745122.

It is an arithmetic number, because the mean of its divisors is an integer number (1142943890400).

Almost surely, 2^{12111021111122} is an apocalyptic number.

12111021111122 is a deficient number, since it is larger than the sum of its proper divisors (6176081135278).

12111021111122 is a wasteful number, since it uses less digits than its factorization.

12111021111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575641.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 12111021111122 its reverse (22111112011121), we get a palindrome (34222133122243).

The spelling of 12111021111122 in words is "twelve trillion, one hundred eleven billion, twenty-one million, one hundred eleven thousand, one hundred twenty-two".