12021102122101 has 2 divisors, whose sum is σ = 12021102122102. Its totient is φ = 12021102122100.

The previous prime is 12021102122093. The next prime is 12021102122119. The reversal of 12021102122101 is 10122120112021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6363359404900 + 5657742717201 = 2522570^2 + 2378601^2 .

It is a cyclic number.

It is not a de Polignac number, because 12021102122101 - 2³ = 12021102122093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12021102122401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010551061050 + 6010551061051.

It is an arithmetic number, because the mean of its divisors is an integer number (6010551061051).

Almost surely, 2^{12021102122101} is an apocalyptic number.

It is an amenable number.

12021102122101 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021102122101 is an equidigital number, since it uses as much as digits as its factorization.

12021102122101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12021102122101 its reverse (10122120112021), we get a palindrome (22143222234122).

The spelling of 12021102122101 in words is "twelve trillion, twenty-one billion, one hundred two million, one hundred twenty-two thousand, one hundred one".