121450201 has 4 divisors (see below), whose sum is σ = 122814900. Its totient is φ = 120085504.

The previous prime is 121450187. The next prime is 121450211. The reversal of 121450201 is 102054121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102054121 = 13 ⋅7850317.

It can be written as a sum of positive squares in 2 ways, for example, as 22467600 + 98982601 = 4740^2 + 9949^2 .

It is a cyclic number.

It is not a de Polignac number, because 121450201 - 2¹⁵ = 121417433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121450211) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 682216 + ... + 682393.

It is an arithmetic number, because the mean of its divisors is an integer number (30703725).

Almost surely, 2^121450201 is an apocalyptic number.

It is an amenable number.

121450201 is a deficient number, since it is larger than the sum of its proper divisors (1364699).

121450201 is an equidigital number, since it uses as much as digits as its factorization.

121450201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364698.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 121450201 is about 11020.4446824981. Note that the first 3 decimals coincide. The cubic root of 121450201 is about 495.2214103196.

It can be divided in two parts, 1214 and 50201, that added together give a palindrome (51415).

The spelling of 121450201 in words is "one hundred twenty-one million, four hundred fifty thousand, two hundred one".