121199395 has 16 divisors (see below), whose sum is σ = 147251520. Its totient is φ = 95760000.

The previous prime is 121199369. The next prime is 121199437. The reversal of 121199395 is 593991121.

It is not a de Polignac number, because 121199395 - 2⁵ = 121199363 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172545 + ... + 173245.

It is an arithmetic number, because the mean of its divisors is an integer number (9203220).

Almost surely, 2^121199395 is an apocalyptic number.

121199395 is a deficient number, since it is larger than the sum of its proper divisors (26052125).

121199395 is a wasteful number, since it uses less digits than its factorization.

121199395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086.

The product of its digits is 21870, while the sum is 40.

The square root of 121199395 is about 11009.0596782832. The cubic root of 121199395 is about 494.8802825811.

The spelling of 121199395 in words is "one hundred twenty-one million, one hundred ninety-nine thousand, three hundred ninety-five".