111102220231 has 4 divisors (see below), whose sum is σ = 112760462392. Its totient is φ = 109443978072.

The previous prime is 111102220169. The next prime is 111102220241. The reversal of 111102220231 is 132022201111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111102220231 - 2¹⁷ = 111102089159 is a prime.

It is a super-2 number, since 2×111102220231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111102220241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 829120980 + ... + 829121113.

It is an arithmetic number, because the mean of its divisors is an integer number (28190115598).

Almost surely, 2^111102220231 is an apocalyptic number.

111102220231 is a deficient number, since it is larger than the sum of its proper divisors (1658242161).

111102220231 is an equidigital number, since it uses as much as digits as its factorization.

111102220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658242160.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 111102220231 its reverse (132022201111), we get a palindrome (243124421342).

The spelling of 111102220231 in words is "one hundred eleven billion, one hundred two million, two hundred twenty thousand, two hundred thirty-one".