121164121 has 8 divisors (see below), whose sum is σ = 137352320. Its totient is φ = 105957072.

The previous prime is 121164091. The next prime is 121164179. The reversal of 121164121 is 121461121.

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

It is not a de Polignac number, because 121164121 - 2¹¹ = 121162073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121164521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245025 + ... + 245518.

It is an arithmetic number, because the mean of its divisors is an integer number (17169040).

Almost surely, 2^121164121 is an apocalyptic number.

It is an amenable number.

121164121 is a deficient number, since it is larger than the sum of its proper divisors (16188199).

121164121 is a wasteful number, since it uses less digits than its factorization.

121164121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490575.

The product of its digits is 96, while the sum is 19.

The square root of 121164121 is about 11007.4575175197. The cubic root of 121164121 is about 494.8322677626.

The spelling of 121164121 in words is "one hundred twenty-one million, one hundred sixty-four thousand, one hundred twenty-one".