121222110199 has 2 divisors, whose sum is σ = 121222110200. Its totient is φ = 121222110198.

The previous prime is 121222110187. The next prime is 121222110211. The reversal of 121222110199 is 991011222121.

It is a balanced prime because it is at equal distance from previous prime (121222110187) and next prime (121222110211).

It is a cyclic number.

It is not a de Polignac number, because 121222110199 - 2¹⁷ = 121221979127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121222110199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121222110169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60611055099 + 60611055100.

It is an arithmetic number, because the mean of its divisors is an integer number (60611055100).

Almost surely, 2^121222110199 is an apocalyptic number.

121222110199 is a deficient number, since it is larger than the sum of its proper divisors (1).

121222110199 is an equidigital number, since it uses as much as digits as its factorization.

121222110199 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 121222110199 in words is "one hundred twenty-one billion, two hundred twenty-two million, one hundred ten thousand, one hundred ninety-nine".