111110100212111 has 16 divisors (see below), whose sum is σ = 149182791894528. Its totient is φ = 79919352799200.

The previous prime is 111110100212081. The next prime is 111110100212131. The reversal of 111110100212111 is 111212001011111.

It is a cyclic number.

It is not a de Polignac number, because 111110100212111 - 2¹⁴ = 111110100195727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111110100212131) 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, 55499549555 + ... + 55499551556.

It is an arithmetic number, because the mean of its divisors is an integer number (9323924493408).

Almost surely, 2^{111110100212111} is an apocalyptic number.

111110100212111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111110100212111 is a deficient number, since it is larger than the sum of its proper divisors (38072691682417).

111110100212111 is a wasteful number, since it uses less digits than its factorization.

111110100212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110999101142.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 111110100212111 its reverse (111212001011111), we get a palindrome (222322101223222).

The spelling of 111110100212111 in words is "one hundred eleven trillion, one hundred ten billion, one hundred million, two hundred twelve thousand, one hundred eleven".