2193322321 has 2 divisors, whose sum is σ = 2193322322. Its totient is φ = 2193322320.

The previous prime is 2193322309. The next prime is 2193322331. The reversal of 2193322321 is 1232233912.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1624976721 + 568345600 = 40311^2 + 23840^2 .

It is a cyclic number.

It is not a de Polignac number, because 2193322321 - 2¹³ = 2193314129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2193322321.

It is not a weakly prime, because it can be changed into another prime (2193322301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1096661160 + 1096661161.

It is an arithmetic number, because the mean of its divisors is an integer number (1096661161).

Almost surely, 2^2193322321 is an apocalyptic number.

It is an amenable number.

2193322321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2193322321 is an equidigital number, since it uses as much as digits as its factorization.

2193322321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 28.

The square root of 2193322321 is about 46832.9192022022. The cubic root of 2193322321 is about 1299.2742143984.

The spelling of 2193322321 in words is "two billion, one hundred ninety-three million, three hundred twenty-two thousand, three hundred twenty-one".