2221320201 has 4 divisors (see below), whose sum is σ = 2961760272. Its totient is φ = 1480880132.

The previous prime is 2221320193. The next prime is 2221320209. The reversal of 2221320201 is 1020231222.

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.

It is an interprime number because it is at equal distance from previous prime (2221320193) and next prime (2221320209).

It is a cyclic number.

It is not a de Polignac number, because 2221320201 - 2³ = 2221320193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221320209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370220031 + ... + 370220036.

It is an arithmetic number, because the mean of its divisors is an integer number (740440068).

Almost surely, 2^2221320201 is an apocalyptic number.

It is an amenable number.

2221320201 is a deficient number, since it is larger than the sum of its proper divisors (740440071).

2221320201 is an equidigital number, since it uses as much as digits as its factorization.

2221320201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740440070.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2221320201 is about 47130.8837281883. The cubic root of 2221320201 is about 1304.7792918097.

Adding to 2221320201 its reverse (1020231222), we get a palindrome (3241551423).

The spelling of 2221320201 in words is "two billion, two hundred twenty-one million, three hundred twenty thousand, two hundred one".