2320221121 has 4 divisors (see below), whose sum is σ = 2363998932. Its totient is φ = 2276443312.

The previous prime is 2320221097. The next prime is 2320221151. The reversal of 2320221121 is 1211220232.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2110116096 + 210105025 = 45936^2 + 14495^2 .

It is a cyclic number.

It is not a de Polignac number, because 2320221121 - 2⁵ = 2320221089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2320221095 and 2320221104.

It is not an unprimeable number, because it can be changed into a prime (2320221151) 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, 21888826 + ... + 21888931.

It is an arithmetic number, because the mean of its divisors is an integer number (590999733).

Almost surely, 2^2320221121 is an apocalyptic number.

It is an amenable number.

2320221121 is a deficient number, since it is larger than the sum of its proper divisors (43777811).

2320221121 is an equidigital number, since it uses as much as digits as its factorization.

2320221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43777810.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2320221121 is about 48168.6736479218. The cubic root of 2320221121 is about 1323.8632464107.

Adding to 2320221121 its reverse (1211220232), we get a palindrome (3531441353).

The spelling of 2320221121 in words is "two billion, three hundred twenty million, two hundred twenty-one thousand, one hundred twenty-one".