111021222120199 has 2 divisors, whose sum is σ = 111021222120200. Its totient is φ = 111021222120198.

The previous prime is 111021222120197. The next prime is 111021222120311. The reversal of 111021222120199 is 991021222120111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111021222120199 - 2¹ = 111021222120197 is a prime.

It is a super-2 number, since 2×111021222120199² (a number of 29 digits) contains 22 as substring.

Together with 111021222120197, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111021222120197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55510611060099 + 55510611060100.

It is an arithmetic number, because the mean of its divisors is an integer number (55510611060100).

Almost surely, 2^{111021222120199} is an apocalyptic number.

111021222120199 is a deficient number, since it is larger than the sum of its proper divisors (1).

111021222120199 is an equidigital number, since it uses as much as digits as its factorization.

111021222120199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 34.

The spelling of 111021222120199 in words is "one hundred eleven trillion, twenty-one billion, two hundred twenty-two million, one hundred twenty thousand, one hundred ninety-nine".