22119981019 has 2 divisors, whose sum is σ = 22119981020. Its totient is φ = 22119981018.

The previous prime is 22119981017. The next prime is 22119981071. The reversal of 22119981019 is 91018991122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22119981019 - 2¹ = 22119981017 is a prime.

It is a super-2 number, since 2×22119981019² (a number of 21 digits) contains 22 as substring.

Together with 22119981017, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22119981011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11059990509 + 11059990510.

It is an arithmetic number, because the mean of its divisors is an integer number (11059990510).

Almost surely, 2^22119981019 is an apocalyptic number.

22119981019 is a deficient number, since it is larger than the sum of its proper divisors (1).

22119981019 is an equidigital number, since it uses as much as digits as its factorization.

22119981019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 43.

The spelling of 22119981019 in words is "twenty-two billion, one hundred nineteen million, nine hundred eighty-one thousand, nineteen".