2322220121 has 4 divisors (see below), whose sum is σ = 2500852452. Its totient is φ = 2143587792.

The previous prime is 2322220099. The next prime is 2322220151. The reversal of 2322220121 is 1210222232.

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 291726400 + 2030493721 = 17080^2 + 45061^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2322220121 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 2322220121.

It is not an unprimeable number, because it can be changed into a prime (2322220151) 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, 89316146 + ... + 89316171.

It is an arithmetic number, because the mean of its divisors is an integer number (625213113).

Almost surely, 2^2322220121 is an apocalyptic number.

It is an amenable number.

2322220121 is a deficient number, since it is larger than the sum of its proper divisors (178632331).

2322220121 is a wasteful number, since it uses less digits than its factorization.

2322220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178632330.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2322220121 is about 48189.4191809779. The cubic root of 2322220121 is about 1324.2433313031.

Adding to 2322220121 its reverse (1210222232), we get a palindrome (3532442353).

The spelling of 2322220121 in words is "two billion, three hundred twenty-two million, two hundred twenty thousand, one hundred twenty-one".