2222727778 has 8 divisors (see below), whose sum is σ = 3334434768. Its totient is φ = 1111249524.

The previous prime is 2222727761. The next prime is 2222727791. The reversal of 2222727778 is 8777272222.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30376 + ... + 73267.

It is an arithmetic number, because the mean of its divisors is an integer number (416804346).

Almost surely, 2^2222727778 is an apocalyptic number.

2222727778 is a deficient number, since it is larger than the sum of its proper divisors (1111706990).

2222727778 is a wasteful number, since it uses less digits than its factorization.

2222727778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114368.

The product of its digits is 614656, while the sum is 46.

The square root of 2222727778 is about 47145.8140029420. The cubic root of 2222727778 is about 1305.0548320839.

It can be divided in two parts, 22227 and 27778, that added together give a palindrome (50005).

The spelling of 2222727778 in words is "two billion, two hundred twenty-two million, seven hundred twenty-seven thousand, seven hundred seventy-eight".