121218795 has 32 divisors (see below), whose sum is σ = 216115200. Its totient is φ = 64465632.

The previous prime is 121218767. The next prime is 121218871. The reversal of 121218795 is 597812121.

It is a happy number.

It is not a de Polignac number, because 121218795 - 2⁷ = 121218667 is a prime.

It is a super-2 number, since 2×121218795² = 29387992522504050, which contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 55494 + ... + 57636.

It is an arithmetic number, because the mean of its divisors is an integer number (6753600).

Almost surely, 2^121218795 is an apocalyptic number.

121218795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121218795 is a deficient number, since it is larger than the sum of its proper divisors (94896405).

121218795 is a wasteful number, since it uses less digits than its factorization.

121218795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2576 (or 2570 counting only the distinct ones).

The product of its digits is 10080, while the sum is 36.

The square root of 121218795 is about 11009.9407355353. The cubic root of 121218795 is about 494.9066858077.

The spelling of 121218795 in words is "one hundred twenty-one million, two hundred eighteen thousand, seven hundred ninety-five".