2221111019 has 2 divisors, whose sum is σ = 2221111020. Its totient is φ = 2221111018.

The previous prime is 2221110973. The next prime is 2221111021. The reversal of 2221111019 is 9101111222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2221111019 - 2¹⁶ = 2221045483 is a prime.

It is a super-2 number, since 2×2221111019² = 9866668317446436722, which contains 22 as substring.

Together with 2221111021, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2221111069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110555509 + 1110555510.

It is an arithmetic number, because the mean of its divisors is an integer number (1110555510).

Almost surely, 2^2221111019 is an apocalyptic number.

2221111019 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221111019 is an equidigital number, since it uses as much as digits as its factorization.

2221111019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 2221111019 is about 47128.6645153456. The cubic root of 2221111019 is about 1304.7383334479.

The spelling of 2221111019 in words is "two billion, two hundred twenty-one million, one hundred eleven thousand, nineteen".