111112222279 has 2 divisors, whose sum is σ = 111112222280. Its totient is φ = 111112222278.

The previous prime is 111112222211. The next prime is 111112222283. The reversal of 111112222279 is 972222211111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111112222279 - 2¹⁵ = 111112189511 is a prime.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 111112222279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111112222079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55556111139 + 55556111140.

It is an arithmetic number, because the mean of its divisors is an integer number (55556111140).

Almost surely, 2^111112222279 is an apocalyptic number.

111112222279 is a deficient number, since it is larger than the sum of its proper divisors (1).

111112222279 is an equidigital number, since it uses as much as digits as its factorization.

111112222279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 31.

The spelling of 111112222279 in words is "one hundred eleven billion, one hundred twelve million, two hundred twenty-two thousand, two hundred seventy-nine".