22224250085 has 8 divisors (see below), whose sum is σ = 26670118776. Its totient is φ = 17778720960.

The previous prime is 22224250073. The next prime is 22224250091. The reversal of 22224250085 is 58005242222.

It is a Cunningham number, because it is equal to 149078²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 2250363844 + 19973886241 = 47438^2 + 141329^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22224250085 - 2⁸ = 22224249829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92987 + ... + 230423.

It is an arithmetic number, because the mean of its divisors is an integer number (3333764847).

Almost surely, 2^22224250085 is an apocalyptic number.

It is an amenable number.

22224250085 is a deficient number, since it is larger than the sum of its proper divisors (4445868691).

22224250085 is a wasteful number, since it uses less digits than its factorization.

22224250085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169783.

The product of its (nonzero) digits is 25600, while the sum is 32.

The spelling of 22224250085 in words is "twenty-two billion, two hundred twenty-four million, two hundred fifty thousand, eighty-five".