2220442361 has 2 divisors, whose sum is σ = 2220442362. Its totient is φ = 2220442360.

The previous prime is 2220442339. The next prime is 2220442397. The reversal of 2220442361 is 1632440222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2214267136 + 6175225 = 47056^2 + 2485^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220442361 - 2²² = 2216248057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2220442361.

It is not a weakly prime, because it can be changed into another prime (2220442321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110221180 + 1110221181.

It is an arithmetic number, because the mean of its divisors is an integer number (1110221181).

Almost surely, 2^2220442361 is an apocalyptic number.

It is an amenable number.

2220442361 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220442361 is an equidigital number, since it uses as much as digits as its factorization.

2220442361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 2220442361 is about 47121.5700184109. The cubic root of 2220442361 is about 1304.6073912785.

Adding to 2220442361 its reverse (1632440222), we get a palindrome (3852882583).

The spelling of 2220442361 in words is "two billion, two hundred twenty million, four hundred forty-two thousand, three hundred sixty-one".