121232201 has 4 divisors (see below), whose sum is σ = 121413012. Its totient is φ = 121051392.

The previous prime is 121232191. The next prime is 121232213. The reversal of 121232201 is 102232121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102232121 = 881 ⋅116041.

It can be written as a sum of positive squares in 2 ways, for example, as 90706576 + 30525625 = 9524^2 + 5525^2 .

It is a cyclic number.

It is not a de Polignac number, because 121232201 - 2¹⁰ = 121231177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121232231) 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, 89396 + ... + 90741.

It is an arithmetic number, because the mean of its divisors is an integer number (30353253).

Almost surely, 2^121232201 is an apocalyptic number.

It is an amenable number.

121232201 is a deficient number, since it is larger than the sum of its proper divisors (180811).

121232201 is an equidigital number, since it uses as much as digits as its factorization.

121232201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180810.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 121232201 is about 11010.5495321532. The cubic root of 121232201 is about 494.9249296080.

Adding to 121232201 its reverse (102232121), we get a palindrome (223464322).

The spelling of 121232201 in words is "one hundred twenty-one million, two hundred thirty-two thousand, two hundred one".