111221114123 has 8 divisors (see below), whose sum is σ = 127131886080. Its totient is φ = 95315852520.

The previous prime is 111221114119. The next prime is 111221114167. The reversal of 111221114123 is 321411122111.

It is a happy number.

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

It is not a de Polignac number, because 111221114123 - 2² = 111221114119 is a prime.

It is a super-2 number, since 2×111221114123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111221114095 and 111221114104.

It is not an unprimeable number, because it can be changed into a prime (111221114423) 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, 1334243 + ... + 1415148.

It is an arithmetic number, because the mean of its divisors is an integer number (15891485760).

Almost surely, 2^111221114123 is an apocalyptic number.

111221114123 is a deficient number, since it is larger than the sum of its proper divisors (15910771957).

111221114123 is an equidigital number, since it uses as much as digits as its factorization.

111221114123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755177.

The product of its digits is 96, while the sum is 20.

Adding to 111221114123 its reverse (321411122111), we get a palindrome (432632236234).

The spelling of 111221114123 in words is "one hundred eleven billion, two hundred twenty-one million, one hundred fourteen thousand, one hundred twenty-three".