2216390443 has 2 divisors, whose sum is σ = 2216390444. Its totient is φ = 2216390442.

The previous prime is 2216390399. The next prime is 2216390447. The reversal of 2216390443 is 3440936122.

It is a happy number.

2216390443 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 is a cyclic number.

It is not a de Polignac number, because 2216390443 - 2¹⁷ = 2216259371 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2216390399 and 2216390408.

It is not a weakly prime, because it can be changed into another prime (2216390447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108195221 + 1108195222.

It is an arithmetic number, because the mean of its divisors is an integer number (1108195222).

Almost surely, 2^2216390443 is an apocalyptic number.

2216390443 is a deficient number, since it is larger than the sum of its proper divisors (1).

2216390443 is an equidigital number, since it uses as much as digits as its factorization.

2216390443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 2216390443 is about 47078.5560844850. The cubic root of 2216390443 is about 1303.8133481683.

The spelling of 2216390443 in words is "two billion, two hundred sixteen million, three hundred ninety thousand, four hundred forty-three".