111012111022111 has 16 divisors (see below), whose sum is σ = 119631677518080. Its totient is φ = 102404014502400.

The previous prime is 111012111022097. The next prime is 111012111022171. The reversal of 111012111022111 is 111220111210111.

It is not a de Polignac number, because 111012111022111 - 2⁵ = 111012111022079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111012111022171) 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, 161701671 + ... + 162386743.

It is an arithmetic number, because the mean of its divisors is an integer number (7476979844880).

Almost surely, 2^{111012111022111} is an apocalyptic number.

111012111022111 is a deficient number, since it is larger than the sum of its proper divisors (8619566495969).

111012111022111 is a wasteful number, since it uses less digits than its factorization.

111012111022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693426.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 111012111022111 its reverse (111220111210111), we get a palindrome (222232222232222).

The spelling of 111012111022111 in words is "one hundred eleven trillion, twelve billion, one hundred eleven million, twenty-two thousand, one hundred eleven".