12122221063 has 2 divisors, whose sum is σ = 12122221064. Its totient is φ = 12122221062.

The previous prime is 12122221051. The next prime is 12122221147. The reversal of 12122221063 is 36012222121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12122221063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12122221963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061110531 + 6061110532.

It is an arithmetic number, because the mean of its divisors is an integer number (6061110532).

Almost surely, 2^12122221063 is an apocalyptic number.

12122221063 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122221063 is an equidigital number, since it uses as much as digits as its factorization.

12122221063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12122221063 its reverse (36012222121), we get a palindrome (48134443184).

The spelling of 12122221063 in words is "twelve billion, one hundred twenty-two million, two hundred twenty-one thousand, sixty-three".