222222227777777 has 8 divisors (see below), whose sum is σ = 230800939971840. Its totient is φ = 213704574034000.

The previous prime is 222222227777731. The next prime is 222222227777789. The reversal of 222222227777777 is 777777722222222.

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

It is a cyclic number.

It is not a de Polignac number, because 222222227777777 - 2¹⁶ = 222222227712241 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (222222227777477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15264605153 + ... + 15264619710.

It is an arithmetic number, because the mean of its divisors is an integer number (28850117496480).

Almost surely, 2^{222222227777777} is an apocalyptic number.

It is an amenable number.

222222227777777 is a deficient number, since it is larger than the sum of its proper divisors (8578712194063).

222222227777777 is a wasteful number, since it uses less digits than its factorization.

222222227777777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30529225143.

The product of its digits is 210827008, while the sum is 65.

Adding to 222222227777777 its reverse (777777722222222), we get a palindrome (999999949999999).

The spelling of 222222227777777 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, two hundred twenty-seven million, seven hundred seventy-seven thousand, seven hundred seventy-seven".