111100212220111 has 8 divisors (see below), whose sum is σ = 117731704876704. Its totient is φ = 104479406903040.

The previous prime is 111100212220079. The next prime is 111100212220139. The reversal of 111100212220111 is 111022212001111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111100212220111 - 2⁵ = 111100212220079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100212220141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2671813470 + ... + 2671855051.

It is an arithmetic number, because the mean of its divisors is an integer number (14716463109588).

Almost surely, 2^{111100212220111} is an apocalyptic number.

111100212220111 is a deficient number, since it is larger than the sum of its proper divisors (6631492656593).

111100212220111 is a wasteful number, since it uses less digits than its factorization.

111100212220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5343669761.

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

Adding to 111100212220111 its reverse (111022212001111), we get a palindrome (222122424221222).

The spelling of 111100212220111 in words is "one hundred eleven trillion, one hundred billion, two hundred twelve million, two hundred twenty thousand, one hundred eleven".