2221443019 has 2 divisors, whose sum is σ = 2221443020. Its totient is φ = 2221443018.

The previous prime is 2221443011. The next prime is 2221443053. The reversal of 2221443019 is 9103441222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221443019 - 2³ = 2221443011 is a prime.

It is a super-2 number, since 2×2221443019² = 9869618173327668722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2221443011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110721509 + 1110721510.

It is an arithmetic number, because the mean of its divisors is an integer number (1110721510).

Almost surely, 2^2221443019 is an apocalyptic number.

2221443019 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221443019 is an equidigital number, since it uses as much as digits as its factorization.

2221443019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 2221443019 is about 47132.1866562543. The cubic root of 2221443019 is about 1304.8033386851.

The spelling of 2221443019 in words is "two billion, two hundred twenty-one million, four hundred forty-three thousand, nineteen".