22188204085 has 16 divisors (see below), whose sum is σ = 28133804160. Its totient is φ = 16752363840.

The previous prime is 22188204083. The next prime is 22188204127. The reversal of 22188204085 is 58040288122.

It is not a de Polignac number, because 22188204085 - 2¹ = 22188204083 is a prime.

It is a super-2 number, since 2×22188204085² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22188204083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419046 + ... + 469015.

It is an arithmetic number, because the mean of its divisors is an integer number (1758362760).

Almost surely, 2^22188204085 is an apocalyptic number.

It is an amenable number.

22188204085 is a deficient number, since it is larger than the sum of its proper divisors (5945600075).

22188204085 is a wasteful number, since it uses less digits than its factorization.

22188204085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888348.

The product of its (nonzero) digits is 81920, while the sum is 40.

The spelling of 22188204085 in words is "twenty-two billion, one hundred eighty-eight million, two hundred four thousand, eighty-five".