121233199 has 2 divisors, whose sum is σ = 121233200. Its totient is φ = 121233198.

The previous prime is 121233197. The next prime is 121233221. The reversal of 121233199 is 991332121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121233199 - 2¹ = 121233197 is a prime.

Together with 121233197, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 121233199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121233191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60616599 + 60616600.

It is an arithmetic number, because the mean of its divisors is an integer number (60616600).

Almost surely, 2^121233199 is an apocalyptic number.

121233199 is a deficient number, since it is larger than the sum of its proper divisors (1).

121233199 is an equidigital number, since it uses as much as digits as its factorization.

121233199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 31.

The square root of 121233199 is about 11010.5948522321. The cubic root of 121233199 is about 494.9262877008.

The spelling of 121233199 in words is "one hundred twenty-one million, two hundred thirty-three thousand, one hundred ninety-nine".