111122122100111 has 8 divisors (see below), whose sum is σ = 113706513575424. Its totient is φ = 108537737719320.

The previous prime is 111122122100107. The next prime is 111122122100123. The reversal of 111122122100111 is 111001221221111.

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 111122122100111 - 2² = 111122122100107 is a prime.

It is a super-2 number, since 2×111122122100111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111122122100111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111122122100131) 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, 42783746 + ... + 45306656.

It is an arithmetic number, because the mean of its divisors is an integer number (14213314196928).

Almost surely, 2^{111122122100111} is an apocalyptic number.

111122122100111 is a deficient number, since it is larger than the sum of its proper divisors (2584391475313).

111122122100111 is a wasteful number, since it uses less digits than its factorization.

111122122100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3547261.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111122122100111 its reverse (111001221221111), we get a palindrome (222123343321222).

The spelling of 111122122100111 in words is "one hundred eleven trillion, one hundred twenty-two billion, one hundred twenty-two million, one hundred thousand, one hundred eleven".