121295099 has 4 divisors (see below), whose sum is σ = 122830560. Its totient is φ = 119759640.

The previous prime is 121295071. The next prime is 121295101. The reversal of 121295099 is 990592121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990592121 = 29 ⋅34158349.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121295099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121295039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 767612 + ... + 767769.

It is an arithmetic number, because the mean of its divisors is an integer number (30707640).

Almost surely, 2^121295099 is an apocalyptic number.

121295099 is a deficient number, since it is larger than the sum of its proper divisors (1535461).

121295099 is an equidigital number, since it uses as much as digits as its factorization.

121295099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535460.

The product of its (nonzero) digits is 14580, while the sum is 38.

The square root of 121295099 is about 11013.4054224840. The cubic root of 121295099 is about 495.0105075483.

The spelling of 121295099 in words is "one hundred twenty-one million, two hundred ninety-five thousand, ninety-nine".