2222008861 has 2 divisors, whose sum is σ = 2222008862. Its totient is φ = 2222008860.

The previous prime is 2222008847. The next prime is 2222008879. The reversal of 2222008861 is 1688002222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2210786361 + 11222500 = 47019^2 + 3350^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222008861 - 2²⁷ = 2087791133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2222008361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111004430 + 1111004431.

It is an arithmetic number, because the mean of its divisors is an integer number (1111004431).

Almost surely, 2^2222008861 is an apocalyptic number.

It is an amenable number.

2222008861 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222008861 is an equidigital number, since it uses as much as digits as its factorization.

2222008861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 2222008861 is about 47138.1889872744. The cubic root of 2222008861 is about 1304.9141150057.

The spelling of 2222008861 in words is "two billion, two hundred twenty-two million, eight thousand, eight hundred sixty-one".