2222761 has 2 divisors, whose sum is σ = 2222762. Its totient is φ = 2222760.

The previous prime is 2222741. The next prime is 2222783. The reversal of 2222761 is 1672222.

2222761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (2222783) can be obtained adding 2222761 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1651225 + 571536 = 1285^2 + 756^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222761 - 2⁵ = 2222729 is a prime.

It is not a weakly prime, because it can be changed into another prime (2222741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111380 + 1111381.

It is an arithmetic number, because the mean of its divisors is an integer number (1111381).

2^2222761 is an apocalyptic number.

It is an amenable number.

2222761 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222761 is an equidigital number, since it uses as much as digits as its factorization.

2222761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 22.

The square root of 2222761 is about 1490.8926856082. The cubic root of 2222761 is about 130.5061334052.

Adding to 2222761 its reverse (1672222), we get a palindrome (3894983).

The spelling of 2222761 in words is "two million, two hundred twenty-two thousand, seven hundred sixty-one".