22000222112261 has 2 divisors, whose sum is σ = 22000222112262. Its totient is φ = 22000222112260.

The previous prime is 22000222112249. The next prime is 22000222112287. The reversal of 22000222112261 is 16221122200022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17126304899236 + 4873917213025 = 4138394^2 + 2207695^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22000222112261 is a prime.

It is a super-3 number, since 3×22000222112261³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22000222112861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000111056130 + 11000111056131.

It is an arithmetic number, because the mean of its divisors is an integer number (11000111056131).

Almost surely, 2^{22000222112261} is an apocalyptic number.

It is an amenable number.

22000222112261 is a deficient number, since it is larger than the sum of its proper divisors (1).

22000222112261 is an equidigital number, since it uses as much as digits as its factorization.

22000222112261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 22000222112261 its reverse (16221122200022), we get a palindrome (38221344312283).

The spelling of 22000222112261 in words is "twenty-two trillion, two hundred twenty-two million, one hundred twelve thousand, two hundred sixty-one".