222502588985 has 4 divisors (see below), whose sum is σ = 267003106788. Its totient is φ = 178002071184.

The previous prime is 222502588981. The next prime is 222502588991. The reversal of 222502588985 is 589885205222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 589885205222 = 2 ⋅294942602611.

It can be written as a sum of positive squares in 2 ways, for example, as 149684645881 + 72817943104 = 386891^2 + 269848^2 .

It is a cyclic number.

It is not a de Polignac number, because 222502588985 - 2² = 222502588981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222502588985.

It is not an unprimeable number, because it can be changed into a prime (222502588981) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 22250258894 + ... + 22250258903.

It is an arithmetic number, because the mean of its divisors is an integer number (66750776697).

Almost surely, 2^222502588985 is an apocalyptic number.

It is an amenable number.

222502588985 is a deficient number, since it is larger than the sum of its proper divisors (44500517803).

222502588985 is an equidigital number, since it uses as much as digits as its factorization.

222502588985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44500517802.

The product of its (nonzero) digits is 9216000, while the sum is 56.

The spelling of 222502588985 in words is "two hundred twenty-two billion, five hundred two million, five hundred eighty-eight thousand, nine hundred eighty-five".