12103102202221 has 2 divisors, whose sum is σ = 12103102202222. Its totient is φ = 12103102202220.

The previous prime is 12103102202207. The next prime is 12103102202237. The reversal of 12103102202221 is 12220220130121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8293536022500 + 3809566179721 = 2879850^2 + 1951811^2 .

It is a cyclic number.

It is not a de Polignac number, because 12103102202221 - 2⁵ = 12103102202189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12103102202251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051551101110 + 6051551101111.

It is an arithmetic number, because the mean of its divisors is an integer number (6051551101111).

Almost surely, 2^{12103102202221} is an apocalyptic number.

It is an amenable number.

12103102202221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12103102202221 is an equidigital number, since it uses as much as digits as its factorization.

12103102202221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12103102202221 its reverse (12220220130121), we get a palindrome (24323322332342).

The spelling of 12103102202221 in words is "twelve trillion, one hundred three billion, one hundred two million, two hundred two thousand, two hundred twenty-one".