121101995 has 16 divisors (see below), whose sum is σ = 166304448. Its totient is φ = 82930560.

The previous prime is 121101989. The next prime is 121101997. The reversal of 121101995 is 599101121.

It is not a de Polignac number, because 121101995 - 2²⁶ = 53993131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121101997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31097 + ... + 34773.

It is an arithmetic number, because the mean of its divisors is an integer number (10394028).

Almost surely, 2^121101995 is an apocalyptic number.

121101995 is a deficient number, since it is larger than the sum of its proper divisors (45202453).

121101995 is an equidigital number, since it uses as much as digits as its factorization.

121101995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4630.

The product of its (nonzero) digits is 810, while the sum is 29.

The square root of 121101995 is about 11004.6351597861. The cubic root of 121101995 is about 494.7476794512.

The spelling of 121101995 in words is "one hundred twenty-one million, one hundred one thousand, nine hundred ninety-five".