111011221199 has 2 divisors, whose sum is σ = 111011221200. Its totient is φ = 111011221198.

The previous prime is 111011221193. The next prime is 111011221261. The reversal of 111011221199 is 991122110111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111011221199 - 2¹⁶ = 111011155663 is a prime.

It is a super-3 number, since 3×111011221199³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111011221193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505610599 + 55505610600.

It is an arithmetic number, because the mean of its divisors is an integer number (55505610600).

Almost surely, 2^111011221199 is an apocalyptic number.

111011221199 is a deficient number, since it is larger than the sum of its proper divisors (1).

111011221199 is an equidigital number, since it uses as much as digits as its factorization.

111011221199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 29.

It can be divided in two parts, 1110112 and 21199, that added together give a palindrome (1131311).

The spelling of 111011221199 in words is "one hundred eleven billion, eleven million, two hundred twenty-one thousand, one hundred ninety-nine".