21112222222019 has 2 divisors, whose sum is σ = 21112222222020. Its totient is φ = 21112222222018.

The previous prime is 21112222221947. The next prime is 21112222222057. The reversal of 21112222222019 is 91022222221112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21112222222019 - 2²⁸ = 21111953786563 is a prime.

It is a super-2 number, since 2×21112222222019² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21112222221982 and 21112222222000.

It is not a weakly prime, because it can be changed into another prime (21112222222219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556111111009 + 10556111111010.

It is an arithmetic number, because the mean of its divisors is an integer number (10556111111010).

Almost surely, 2^{21112222222019} is an apocalyptic number.

21112222222019 is a deficient number, since it is larger than the sum of its proper divisors (1).

21112222222019 is an equidigital number, since it uses as much as digits as its factorization.

21112222222019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 21112222222019 in words is "twenty-one trillion, one hundred twelve billion, two hundred twenty-two million, two hundred twenty-two thousand, nineteen".