121120199 has 2 divisors, whose sum is σ = 121120200. Its totient is φ = 121120198.

The previous prime is 121120177. The next prime is 121120229. The reversal of 121120199 is 991021121.

It is a weak prime.

It is an emirp because it is prime and its reverse (991021121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121120199 - 2¹² = 121116103 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121120169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60560099 + 60560100.

It is an arithmetic number, because the mean of its divisors is an integer number (60560100).

Almost surely, 2^121120199 is an apocalyptic number.

121120199 is a deficient number, since it is larger than the sum of its proper divisors (1).

121120199 is an equidigital number, since it uses as much as digits as its factorization.

121120199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 26.

The square root of 121120199 is about 11005.4622347269. The cubic root of 121120199 is about 494.7724682955.

It can be divided in two parts, 12 and 1120199, that added together give a palindrome (1120211).

The spelling of 121120199 in words is "one hundred twenty-one million, one hundred twenty thousand, one hundred ninety-nine".