1112212211111 has 8 divisors (see below), whose sum is σ = 1160581880544. Its totient is φ = 1063843593120.

The previous prime is 1112212211027. The next prime is 1112212211129. The reversal of 1112212211111 is 1111122122111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1112212211111 - 2²⁶ = 1112145102247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1112212211111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112212217111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2530385 + ... + 2937221.

It is an arithmetic number, because the mean of its divisors is an integer number (145072735068).

Almost surely, 2^{1112212211111} is an apocalyptic number.

1112212211111 is a deficient number, since it is larger than the sum of its proper divisors (48369669433).

1112212211111 is a wasteful number, since it uses less digits than its factorization.

1112212211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525721.

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

Adding to 1112212211111 its reverse (1111122122111), we get a palindrome (2223334333222).

It can be divided in two parts, 11122122111 and 11, that multiplied together give a palindrome (122343343221).

The spelling of 1112212211111 in words is "one trillion, one hundred twelve billion, two hundred twelve million, two hundred eleven thousand, one hundred eleven".