111222021199 has 2 divisors, whose sum is σ = 111222021200. Its totient is φ = 111222021198.

The previous prime is 111222021193. The next prime is 111222021223. The reversal of 111222021199 is 991120222111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111222021199 - 2⁵ = 111222021167 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111222021199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111222021193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55611010599 + 55611010600.

It is an arithmetic number, because the mean of its divisors is an integer number (55611010600).

Almost surely, 2^111222021199 is an apocalyptic number.

111222021199 is a deficient number, since it is larger than the sum of its proper divisors (1).

111222021199 is an equidigital number, since it uses as much as digits as its factorization.

111222021199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 111222021199 in words is "one hundred eleven billion, two hundred twenty-two million, twenty-one thousand, one hundred ninety-nine".