2221000043 has 2 divisors, whose sum is σ = 2221000044. Its totient is φ = 2221000042.

The previous prime is 2220999997. The next prime is 2221000049. The reversal of 2221000043 is 3400001222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2221000043 - 2¹⁴ = 2220983659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2220999991 and 2221000027.

It is not a weakly prime, because it can be changed into another prime (2221000049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110500021 + 1110500022.

It is an arithmetic number, because the mean of its divisors is an integer number (1110500022).

Almost surely, 2^2221000043 is an apocalyptic number.

2221000043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221000043 is an equidigital number, since it uses as much as digits as its factorization.

2221000043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2221000043 is about 47127.4871280021. The cubic root of 2221000043 is about 1304.7166030238.

Adding to 2221000043 its reverse (3400001222), we get a palindrome (5621001265).

The spelling of 2221000043 in words is "two billion, two hundred twenty-one million, forty-three", and thus it is an aban number.