222002240261 has 2 divisors, whose sum is σ = 222002240262. Its totient is φ = 222002240260.

The previous prime is 222002240203. The next prime is 222002240269. The reversal of 222002240261 is 162042200222.

222002240261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182149704100 + 39852536161 = 426790^2 + 199631^2 .

It is a cyclic number.

It is not a de Polignac number, because 222002240261 - 2³⁴ = 204822371077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222002240269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111001120130 + 111001120131.

It is an arithmetic number, because the mean of its divisors is an integer number (111001120131).

Almost surely, 2^222002240261 is an apocalyptic number.

It is an amenable number.

222002240261 is a deficient number, since it is larger than the sum of its proper divisors (1).

222002240261 is an equidigital number, since it uses as much as digits as its factorization.

222002240261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 222002240261 its reverse (162042200222), we get a palindrome (384044440483).

The spelling of 222002240261 in words is "two hundred twenty-two billion, two million, two hundred forty thousand, two hundred sixty-one".