2223721369 has 2 divisors, whose sum is σ = 2223721370. Its totient is φ = 2223721368.

The previous prime is 2223721301. The next prime is 2223721417. The reversal of 2223721369 is 9631273222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1891206144 + 332515225 = 43488^2 + 18235^2 .

It is a cyclic number.

It is not a de Polignac number, because 2223721369 - 2¹⁵ = 2223688601 is a prime.

It is a super-2 number, since 2×2223721369² = 9889873453894468322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2223721169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111860684 + 1111860685.

It is an arithmetic number, because the mean of its divisors is an integer number (1111860685).

Almost surely, 2^2223721369 is an apocalyptic number.

It is an amenable number.

2223721369 is a deficient number, since it is larger than the sum of its proper divisors (1).

2223721369 is an equidigital number, since it uses as much as digits as its factorization.

2223721369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 37.

The square root of 2223721369 is about 47156.3502510531. The cubic root of 2223721369 is about 1305.2492624866.

The spelling of 2223721369 in words is "two billion, two hundred twenty-three million, seven hundred twenty-one thousand, three hundred sixty-nine".