2222177779 has 16 divisors (see below), whose sum is σ = 2295216000. Its totient is φ = 2150217216.

The previous prime is 2222177777. The next prime is 2222177887. The reversal of 2222177779 is 9777712222.

It is a cyclic number.

It is not a de Polignac number, because 2222177779 - 2¹ = 2222177777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2222177773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3455632 + ... + 3456274.

It is an arithmetic number, because the mean of its divisors is an integer number (143451000).

Almost surely, 2^2222177779 is an apocalyptic number.

2222177779 is a deficient number, since it is larger than the sum of its proper divisors (73038221).

2222177779 is a wasteful number, since it uses less digits than its factorization.

2222177779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314.

The product of its digits is 345744, while the sum is 46.

The square root of 2222177779 is about 47139.9806851891. The cubic root of 2222177779 is about 1304.9471808650.

It can be divided in two parts, 22221 and 77779, that added together give a 5-th power (100000 = 10⁵).

The spelling of 2222177779 in words is "two billion, two hundred twenty-two million, one hundred seventy-seven thousand, seven hundred seventy-nine".