111222130221 has 12 divisors (see below), whose sum is σ = 162213938848. Its totient is φ = 73428201864.

The previous prime is 111222130189. The next prime is 111222130231. The reversal of 111222130221 is 122031222111.

It is not a de Polignac number, because 111222130221 - 2⁵ = 111222130189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111222130194 and 111222130203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222130231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59989435 + ... + 59991288.

Almost surely, 2^111222130221 is an apocalyptic number.

It is an amenable number.

111222130221 is a deficient number, since it is larger than the sum of its proper divisors (50991808627).

111222130221 is a wasteful number, since it uses less digits than its factorization.

111222130221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119980832 (or 119980829 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 111222130221 its reverse (122031222111), we get a palindrome (233253352332).

The spelling of 111222130221 in words is "one hundred eleven billion, two hundred twenty-two million, one hundred thirty thousand, two hundred twenty-one".