111122252221111 has 32 divisors (see below), whose sum is σ = 114152719887360. Its totient is φ = 108138851743104.

The previous prime is 111122252221103. The next prime is 111122252221133.

111122252221111 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 111122252221111 - 2³ = 111122252221103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111122252021111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6516279061 + ... + 6516296113.

It is an arithmetic number, because the mean of its divisors is an integer number (3567272496480).

Almost surely, 2^{111122252221111} is an apocalyptic number.

111122252221111 is a deficient number, since it is larger than the sum of its proper divisors (3030467666249).

111122252221111 is a wasteful number, since it uses less digits than its factorization.

111122252221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19495.

The product of its digits is 320, while the sum is 25.

The spelling of 111122252221111 in words is "one hundred eleven trillion, one hundred twenty-two billion, two hundred fifty-two million, two hundred twenty-one thousand, one hundred eleven".