2201233121 has 4 divisors (see below), whose sum is σ = 2203857600. Its totient is φ = 2198608644.

The previous prime is 2201233079. The next prime is 2201233159. The reversal of 2201233121 is 1213321022.

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.

It is a cyclic number.

It is not a de Polignac number, because 2201233121 - 2⁶ = 2201233057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2201233121.

It is not an unprimeable number, because it can be changed into a prime (2201233721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1310981 + ... + 1312658.

It is an arithmetic number, because the mean of its divisors is an integer number (550964400).

Almost surely, 2^2201233121 is an apocalyptic number.

It is an amenable number.

2201233121 is a deficient number, since it is larger than the sum of its proper divisors (2624479).

2201233121 is an equidigital number, since it uses as much as digits as its factorization.

2201233121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624478.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2201233121 is about 46917.3008707875. The cubic root of 2201233121 is about 1300.8343994382.

Adding to 2201233121 its reverse (1213321022), we get a palindrome (3414554143).

The spelling of 2201233121 in words is "two billion, two hundred one million, two hundred thirty-three thousand, one hundred twenty-one".