111222389 has 4 divisors (see below), whose sum is σ = 114810240. Its totient is φ = 107634540.

The previous prime is 111222383. The next prime is 111222413. The reversal of 111222389 is 983222111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111222389 - 2¹² = 111218293 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1793879 + ... + 1793940.

It is an arithmetic number, because the mean of its divisors is an integer number (28702560).

Almost surely, 2^111222389 is an apocalyptic number.

It is an amenable number.

111222389 is a deficient number, since it is larger than the sum of its proper divisors (3587851).

111222389 is an equidigital number, since it uses as much as digits as its factorization.

111222389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3587850.

The product of its digits is 1728, while the sum is 29.

The square root of 111222389 is about 10546.2025867134. The cubic root of 111222389 is about 480.9102937092.

The spelling of 111222389 in words is "one hundred eleven million, two hundred twenty-two thousand, three hundred eighty-nine".