22222221019 has 2 divisors, whose sum is σ = 22222221020. Its totient is φ = 22222221018.

The previous prime is 22222220989. The next prime is 22222221061. The reversal of 22222221019 is 91012222222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22222221019 - 2¹⁵ = 22222188251 is a prime.

It is a super-2 number, since 2×22222221019² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22222220984 and 22222221002.

It is not a weakly prime, because it can be changed into another prime (22222228019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11111110509 + 11111110510.

It is an arithmetic number, because the mean of its divisors is an integer number (11111110510).

Almost surely, 2^22222221019 is an apocalyptic number.

22222221019 is a deficient number, since it is larger than the sum of its proper divisors (1).

22222221019 is an equidigital number, since it uses as much as digits as its factorization.

22222221019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 22222221019 in words is "twenty-two billion, two hundred twenty-two million, two hundred twenty-one thousand, nineteen".