12022225562261 has 2 divisors, whose sum is σ = 12022225562262. Its totient is φ = 12022225562260.

The previous prime is 12022225562189. The next prime is 12022225562297. The reversal of 12022225562261 is 16226552222021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8206477443025 + 3815748119236 = 2864695^2 + 1953394^2 .

It is a cyclic number.

It is not a de Polignac number, because 12022225562261 - 2³⁴ = 12005045693077 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12022225562461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6011112781130 + 6011112781131.

It is an arithmetic number, because the mean of its divisors is an integer number (6011112781131).

Almost surely, 2^{12022225562261} is an apocalyptic number.

It is an amenable number.

12022225562261 is a deficient number, since it is larger than the sum of its proper divisors (1).

12022225562261 is an equidigital number, since it uses as much as digits as its factorization.

12022225562261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 38.

Adding to 12022225562261 its reverse (16226552222021), we get a palindrome (28248777784282).

The spelling of 12022225562261 in words is "twelve trillion, twenty-two billion, two hundred twenty-five million, five hundred sixty-two thousand, two hundred sixty-one".