2221784713 has 2 divisors, whose sum is σ = 2221784714. Its totient is φ = 2221784712.

The previous prime is 2221784687. The next prime is 2221784717. The reversal of 2221784713 is 3174871222.

2221784713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1913887504 + 307897209 = 43748^2 + 17547^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221784713 - 2⁵ = 2221784681 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221784717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110892356 + 1110892357.

It is an arithmetic number, because the mean of its divisors is an integer number (1110892357).

Almost surely, 2^2221784713 is an apocalyptic number.

It is an amenable number.

2221784713 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221784713 is an equidigital number, since it uses as much as digits as its factorization.

2221784713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 37.

The square root of 2221784713 is about 47135.8113646090. The cubic root of 2221784713 is about 1304.8702352340.

The spelling of 2221784713 in words is "two billion, two hundred twenty-one million, seven hundred eighty-four thousand, seven hundred thirteen".