121941199 has 2 divisors, whose sum is σ = 121941200. Its totient is φ = 121941198.

The previous prime is 121941179. The next prime is 121941203. The reversal of 121941199 is 991149121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121941199 - 2⁵ = 121941167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121941109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60970599 + 60970600.

It is an arithmetic number, because the mean of its divisors is an integer number (60970600).

Almost surely, 2^121941199 is an apocalyptic number.

121941199 is a deficient number, since it is larger than the sum of its proper divisors (1).

121941199 is an equidigital number, since it uses as much as digits as its factorization.

121941199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 37.

The square root of 121941199 is about 11042.6989001783. The cubic root of 121941199 is about 495.8878721890.

The spelling of 121941199 in words is "one hundred twenty-one million, nine hundred forty-one thousand, one hundred ninety-nine".