111102303221 has 16 divisors (see below), whose sum is σ = 136900579200. Its totient is φ = 87802723008.

The previous prime is 111102303211. The next prime is 111102303223. The reversal of 111102303221 is 122303201111.

It is a de Polignac number, because none of the positive numbers 2^k-111102303221 is a prime.

It is a super-2 number, since 2×111102303221² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111102303221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111102303223) 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, 632486 + ... + 788823.

It is an arithmetic number, because the mean of its divisors is an integer number (8556286200).

Almost surely, 2^111102303221 is an apocalyptic number.

It is an amenable number.

111102303221 is a deficient number, since it is larger than the sum of its proper divisors (25798275979).

111102303221 is a wasteful number, since it uses less digits than its factorization.

111102303221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422188.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 111102303221 its reverse (122303201111), we get a palindrome (233405504332).

The spelling of 111102303221 in words is "one hundred eleven billion, one hundred two million, three hundred three thousand, two hundred twenty-one".