121189201 has 12 divisors (see below), whose sum is σ = 148396080. Its totient is φ = 98408520.

The previous prime is 121189183. The next prime is 121189207. The reversal of 121189201 is 102981121.

It is not a de Polignac number, because 121189201 - 2⁵ = 121189169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121189207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64155 + ... + 66016.

It is an arithmetic number, because the mean of its divisors is an integer number (12366340).

Almost surely, 2^121189201 is an apocalyptic number.

It is an amenable number.

121189201 is a deficient number, since it is larger than the sum of its proper divisors (27206879).

121189201 is a wasteful number, since it uses less digits than its factorization.

121189201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130204 (or 130197 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 25.

The square root of 121189201 is about 11008.5966862266. The cubic root of 121189201 is about 494.8664075090.

The spelling of 121189201 in words is "one hundred twenty-one million, one hundred eighty-nine thousand, two hundred one".