121195018 has 8 divisors (see below), whose sum is σ = 207762912. Its totient is φ = 51940716.

The previous prime is 121195013. The next prime is 121195021. The reversal of 121195018 is 810591121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (121195013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4328380 + ... + 4328407.

It is an arithmetic number, because the mean of its divisors is an integer number (25970364).

Almost surely, 2^121195018 is an apocalyptic number.

121195018 is a deficient number, since it is larger than the sum of its proper divisors (86567894).

121195018 is an equidigital number, since it uses as much as digits as its factorization.

121195018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8656796.

The product of its (nonzero) digits is 720, while the sum is 28.

The square root of 121195018 is about 11008.8608856684. The cubic root of 121195018 is about 494.8743251337.

The spelling of 121195018 in words is "one hundred twenty-one million, one hundred ninety-five thousand, eighteen".