2303221121 has 16 divisors (see below), whose sum is σ = 2368990800. Its totient is φ = 2238686208.

The previous prime is 2303221091. The next prime is 2303221147. The reversal of 2303221121 is 1211223032.

It can be written as a sum of positive squares in 8 ways, for example, as 5456896 + 2297764225 = 2336^2 + 47935^2 .

It is a cyclic number.

It is not a de Polignac number, because 2303221121 - 2⁶ = 2303221057 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 2303221121.

It is not an unprimeable number, because it can be changed into a prime (2303221181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1328171 + ... + 1329903.

It is an arithmetic number, because the mean of its divisors is an integer number (148061925).

Almost surely, 2^2303221121 is an apocalyptic number.

It is an amenable number.

2303221121 is a deficient number, since it is larger than the sum of its proper divisors (65769679).

2303221121 is a wasteful number, since it uses less digits than its factorization.

2303221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068.

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

The square root of 2303221121 is about 47991.8859912798. The cubic root of 2303221121 is about 1320.6220516613.

Adding to 2303221121 its reverse (1211223032), we get a palindrome (3514444153).

The spelling of 2303221121 in words is "two billion, three hundred three million, two hundred twenty-one thousand, one hundred twenty-one".