2223721315 has 4 divisors (see below), whose sum is σ = 2668465584. Its totient is φ = 1778977048.

The previous prime is 2223721301. The next prime is 2223721369. The reversal of 2223721315 is 5131273222.

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

It is a cyclic number.

It is not a de Polignac number, because 2223721315 - 2¹³ = 2223713123 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222372127 + ... + 222372136.

It is an arithmetic number, because the mean of its divisors is an integer number (667116396).

Almost surely, 2^2223721315 is an apocalyptic number.

2223721315 is a deficient number, since it is larger than the sum of its proper divisors (444744269).

2223721315 is an equidigital number, since it uses as much as digits as its factorization.

2223721315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444744268.

The product of its digits is 5040, while the sum is 28.

The square root of 2223721315 is about 47156.3496784897. The cubic root of 2223721315 is about 1305.2492519212.

Adding to 2223721315 its reverse (5131273222), we get a palindrome (7354994537).

The spelling of 2223721315 in words is "two billion, two hundred twenty-three million, seven hundred twenty-one thousand, three hundred fifteen".