22085019 has 24 divisors (see below), whose sum is σ = 35655984. Its totient is φ = 13056000.

The previous prime is 22085017. The next prime is 22085027. The reversal of 22085019 is 91058022.

It is not a de Polignac number, because 22085019 - 2¹ = 22085017 is a prime.

It is a super-2 number, since 2×22085019² = 975496128460722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22084983 and 22085001.

It is not an unprimeable number, because it can be changed into a prime (22085017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1339 + ... + 6779.

It is an arithmetic number, because the mean of its divisors is an integer number (1485666).

Almost surely, 2^22085019 is an apocalyptic number.

22085019 is a deficient number, since it is larger than the sum of its proper divisors (13570965).

22085019 is a wasteful number, since it uses less digits than its factorization.

22085019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5499 (or 5496 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 22085019 is about 4699.4700765086. The cubic root of 22085019 is about 280.5644184647.

It can be divided in two parts, 2208 and 5019, that added together give a palindrome (7227).

The spelling of 22085019 in words is "twenty-two million, eighty-five thousand, nineteen".