2330221391 has 2 divisors, whose sum is σ = 2330221392. Its totient is φ = 2330221390.

The previous prime is 2330221363. The next prime is 2330221457. The reversal of 2330221391 is 1931220332.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2330221391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2330221391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2330421391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1165110695 + 1165110696.

It is an arithmetic number, because the mean of its divisors is an integer number (1165110696).

Almost surely, 2^2330221391 is an apocalyptic number.

2330221391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2330221391 is an equidigital number, since it uses as much as digits as its factorization.

2330221391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 2330221391 is about 48272.3667433036. The cubic root of 2330221391 is about 1325.7624928464.

The spelling of 2330221391 in words is "two billion, three hundred thirty million, two hundred twenty-one thousand, three hundred ninety-one".