1201223201 has 4 divisors (see below), whose sum is σ = 1201770672. Its totient is φ = 1200675732.

The previous prime is 1201223197. The next prime is 1201223209. The reversal of 1201223201 is 1023221021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1023221021 = 53 ⋅19306057.

It is a cyclic number.

It is not a de Polignac number, because 1201223201 - 2² = 1201223197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201223209) 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, 270431 + ... + 274836.

It is an arithmetic number, because the mean of its divisors is an integer number (300442668).

Almost surely, 2^1201223201 is an apocalyptic number.

It is an amenable number.

1201223201 is a deficient number, since it is larger than the sum of its proper divisors (547471).

1201223201 is an equidigital number, since it uses as much as digits as its factorization.

1201223201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547470.

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

The square root of 1201223201 is about 34658.6670401503. The cubic root of 1201223201 is about 1063.0195146314.

Adding to 1201223201 its reverse (1023221021), we get a palindrome (2224444222).

The spelling of 1201223201 in words is "one billion, two hundred one million, two hundred twenty-three thousand, two hundred one".