11022222022261 has 2 divisors, whose sum is σ = 11022222022262. Its totient is φ = 11022222022260.

The previous prime is 11022222022223. The next prime is 11022222022267. The reversal of 11022222022261 is 16222022222011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6418596915025 + 4603625107236 = 2533495^2 + 2145606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11022222022261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11022222022267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5511111011130 + 5511111011131.

It is an arithmetic number, because the mean of its divisors is an integer number (5511111011131).

Almost surely, 2^{11022222022261} is an apocalyptic number.

It is an amenable number.

11022222022261 is a deficient number, since it is larger than the sum of its proper divisors (1).

11022222022261 is an equidigital number, since it uses as much as digits as its factorization.

11022222022261 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 25.

Adding to 11022222022261 its reverse (16222022222011), we get a palindrome (27244244244272).

The spelling of 11022222022261 in words is "eleven trillion, twenty-two billion, two hundred twenty-two million, twenty-two thousand, two hundred sixty-one".