12102102020111 has 2 divisors, whose sum is σ = 12102102020112. Its totient is φ = 12102102020110.

The previous prime is 12102102020009. The next prime is 12102102020131. The reversal of 12102102020111 is 11102020120121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12102102020111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12102102020131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051051010055 + 6051051010056.

It is an arithmetic number, because the mean of its divisors is an integer number (6051051010056).

Almost surely, 2^{12102102020111} is an apocalyptic number.

12102102020111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102102020111 is an equidigital number, since it uses as much as digits as its factorization.

12102102020111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12102102020111 its reverse (11102020120121), we get a palindrome (23204122140232).

The spelling of 12102102020111 in words is "twelve trillion, one hundred two billion, one hundred two million, twenty thousand, one hundred eleven".