2185222170019 has 16 divisors (see below), whose sum is σ = 2555662804992. Its totient is φ = 1829354421888.

The previous prime is 2185222170017. The next prime is 2185222170031. The reversal of 2185222170019 is 9100712225812.

It is not a de Polignac number, because 2185222170019 - 2¹ = 2185222170017 is a prime.

It is a super-2 number, since 2×2185222170019² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2185222170017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3965262 + ... + 4482604.

It is an arithmetic number, because the mean of its divisors is an integer number (159728925312).

Almost surely, 2^{2185222170019} is an apocalyptic number.

2185222170019 is a deficient number, since it is larger than the sum of its proper divisors (370440634973).

2185222170019 is a wasteful number, since it uses less digits than its factorization.

2185222170019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531426.

The product of its (nonzero) digits is 40320, while the sum is 40.

The spelling of 2185222170019 in words is "two trillion, one hundred eighty-five billion, two hundred twenty-two million, one hundred seventy thousand, nineteen".