2230021691 has 2 divisors, whose sum is σ = 2230021692. Its totient is φ = 2230021690.

The previous prime is 2230021589. The next prime is 2230021711. The reversal of 2230021691 is 1961200322.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2230021691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2230021691.

It is not a weakly prime, because it can be changed into another prime (2230921691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115010845 + 1115010846.

It is an arithmetic number, because the mean of its divisors is an integer number (1115010846).

Almost surely, 2^2230021691 is an apocalyptic number.

2230021691 is a deficient number, since it is larger than the sum of its proper divisors (1).

2230021691 is an equidigital number, since it uses as much as digits as its factorization.

2230021691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 2230021691 is about 47223.1054781449. The cubic root of 2230021691 is about 1306.4807921502.

The spelling of 2230021691 in words is "two billion, two hundred thirty million, twenty-one thousand, six hundred ninety-one".