2223395921 has 8 divisors (see below), whose sum is σ = 2253429288. Its totient is φ = 2193520000.

The previous prime is 2223395917. The next prime is 2223395927. The reversal of 2223395921 is 1295933222.

It can be written as a sum of positive squares in 4 ways, for example, as 1397638225 + 825757696 = 37385^2 + 28736^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2223395921 - 2² = 2223395917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2223395927) 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 7 ways as a sum of consecutive naturals, for example, 10790 + ... + 67551.

It is an arithmetic number, because the mean of its divisors is an integer number (281678661).

Almost surely, 2^2223395921 is an apocalyptic number.

It is an amenable number.

2223395921 is a deficient number, since it is larger than the sum of its proper divisors (30033367).

2223395921 is a wasteful number, since it uses less digits than its factorization.

2223395921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78723.

The product of its digits is 58320, while the sum is 38.

The square root of 2223395921 is about 47152.8993912357. The cubic root of 2223395921 is about 1305.1855837223.

The spelling of 2223395921 in words is "two billion, two hundred twenty-three million, three hundred ninety-five thousand, nine hundred twenty-one".