111210012111 has 16 divisors (see below), whose sum is σ = 166131911808. Its totient is φ = 65578384800.

The previous prime is 111210012107. The next prime is 111210012131.

111210012111 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 111210012111 - 2² = 111210012107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111210012131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45539325 + ... + 45541766.

It is an arithmetic number, because the mean of its divisors is an integer number (10383244488).

Almost surely, 2^111210012111 is an apocalyptic number.

111210012111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111210012111 is a deficient number, since it is larger than the sum of its proper divisors (54921899697).

111210012111 is a wasteful number, since it uses less digits than its factorization.

111210012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91081142.

The product of its (nonzero) digits is 4, while the sum is 12.

It can be divided in two parts, 1112100 and 12111, that added together give a palindrome (1124211).

The spelling of 111210012111 in words is "one hundred eleven billion, two hundred ten million, twelve thousand, one hundred eleven".