12221300123 has 2 divisors, whose sum is σ = 12221300124. Its totient is φ = 12221300122.

The previous prime is 12221300101. The next prime is 12221300233. The reversal of 12221300123 is 32100312221.

It is a weak prime.

It is an emirp because it is prime and its reverse (32100312221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12221300123 - 2²⁸ = 11952864667 is a prime.

It is not a weakly prime, because it can be changed into another prime (12221330123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110650061 + 6110650062.

It is an arithmetic number, because the mean of its divisors is an integer number (6110650062).

Almost surely, 2^12221300123 is an apocalyptic number.

12221300123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221300123 is an equidigital number, since it uses as much as digits as its factorization.

12221300123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12221300123 its reverse (32100312221), we get a palindrome (44321612344).

The spelling of 12221300123 in words is "twelve billion, two hundred twenty-one million, three hundred thousand, one hundred twenty-three".