111212303212111 has 16 divisors (see below), whose sum is σ = 111961446309216. Its totient is φ = 110464418123136.

The previous prime is 111212303212067. The next prime is 111212303212187.

111212303212111 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 111212303212111 - 2⁷ = 111212303211983 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 (111212303212811) 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, 1121799901 + ... + 1121899033.

It is an arithmetic number, because the mean of its divisors is an integer number (6997590394326).

Almost surely, 2^{111212303212111} is an apocalyptic number.

111212303212111 is a deficient number, since it is larger than the sum of its proper divisors (749143097105).

111212303212111 is a wasteful number, since it uses less digits than its factorization.

111212303212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105402.

The product of its (nonzero) digits is 144, while the sum is 22.

It can be divided in two parts, 11121230 and 3212111, that added together give a palindrome (14333341).

The spelling of 111212303212111 in words is "one hundred eleven trillion, two hundred twelve billion, three hundred three million, two hundred twelve thousand, one hundred eleven".