12102121201127 has 2 divisors, whose sum is σ = 12102121201128. Its totient is φ = 12102121201126.

The previous prime is 12102121201061. The next prime is 12102121201139. The reversal of 12102121201127 is 72110212120121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12102121201127 is a prime.

It is a super-2 number, since 2×12102121201127² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12102121201627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051060600563 + 6051060600564.

It is an arithmetic number, because the mean of its divisors is an integer number (6051060600564).

Almost surely, 2^{12102121201127} is an apocalyptic number.

12102121201127 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102121201127 is an equidigital number, since it uses as much as digits as its factorization.

12102121201127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 23.

Adding to 12102121201127 its reverse (72110212120121), we get a palindrome (84212333321248).

The spelling of 12102121201127 in words is "twelve trillion, one hundred two billion, one hundred twenty-one million, two hundred one thousand, one hundred twenty-seven".