12102010301221 has 2 divisors, whose sum is σ = 12102010301222. Its totient is φ = 12102010301220.

The previous prime is 12102010301083. The next prime is 12102010301231. The reversal of 12102010301221 is 12210301020121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9163394952100 + 2938615349121 = 3027110^2 + 1714239^2 .

It is an emirp because it is prime and its reverse (12210301020121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12102010301221 - 2¹³ = 12102010293029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12102010301195 and 12102010301204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12102010301231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051005150610 + 6051005150611.

It is an arithmetic number, because the mean of its divisors is an integer number (6051005150611).

Almost surely, 2^{12102010301221} is an apocalyptic number.

It is an amenable number.

12102010301221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102010301221 is an equidigital number, since it uses as much as digits as its factorization.

12102010301221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12102010301221 its reverse (12210301020121), we get a palindrome (24312311321342).

The spelling of 12102010301221 in words is "twelve trillion, one hundred two billion, ten million, three hundred one thousand, two hundred twenty-one".