2220442771 has 6 divisors (see below), whose sum is σ = 2343459372. Its totient is φ = 2103577020.

The previous prime is 2220442759. The next prime is 2220442789. The reversal of 2220442771 is 1772440222.

It is not a de Polignac number, because 2220442771 - 2²⁹ = 1683571859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220442171) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3075045 + ... + 3075766.

It is an arithmetic number, because the mean of its divisors is an integer number (390576562).

Almost surely, 2^2220442771 is an apocalyptic number.

2220442771 is a deficient number, since it is larger than the sum of its proper divisors (123016601).

2220442771 is an equidigital number, since it uses as much as digits as its factorization.

2220442771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6150849 (or 6150830 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 31.

The square root of 2220442771 is about 47121.5743688600. The cubic root of 2220442771 is about 1304.6074715761.

Adding to 2220442771 its reverse (1772440222), we get a palindrome (3992882993).

The spelling of 2220442771 in words is "two billion, two hundred twenty million, four hundred forty-two thousand, seven hundred seventy-one".