222222466889 has 4 divisors (see below), whose sum is σ = 235294376724. Its totient is φ = 209150557056.

The previous prime is 222222466867. The next prime is 222222466891. The reversal of 222222466889 is 988664222222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 198195916864 + 24026550025 = 445192^2 + 155005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222222466889 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 222222466889.

It is not an unprimeable number, because it can be changed into a prime (222222466859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6535954892 + ... + 6535954925.

It is an arithmetic number, because the mean of its divisors is an integer number (58823594181).

Almost surely, 2^222222466889 is an apocalyptic number.

It is an amenable number.

222222466889 is a deficient number, since it is larger than the sum of its proper divisors (13071909835).

222222466889 is a wasteful number, since it uses less digits than its factorization.

222222466889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13071909834.

The product of its digits is 5308416, while the sum is 53.

The spelling of 222222466889 in words is "two hundred twenty-two billion, two hundred twenty-two million, four hundred sixty-six thousand, eight hundred eighty-nine".