22220001166523 has 2 divisors, whose sum is σ = 22220001166524. Its totient is φ = 22220001166522.

The previous prime is 22220001166459. The next prime is 22220001166661. The reversal of 22220001166523 is 32566110002222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22220001166523 - 2⁶ = 22220001166459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22220001166523.

It is not a weakly prime, because it can be changed into another prime (22220001166123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110000583261 + 11110000583262.

It is an arithmetic number, because the mean of its divisors is an integer number (11110000583262).

Almost surely, 2^{22220001166523} is an apocalyptic number.

22220001166523 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220001166523 is an equidigital number, since it uses as much as digits as its factorization.

22220001166523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 22220001166523 its reverse (32566110002222), we get a palindrome (54786111168745).

The spelling of 22220001166523 in words is "twenty-two trillion, two hundred twenty billion, one million, one hundred sixty-six thousand, five hundred twenty-three".