12102112201811 has 2 divisors, whose sum is σ = 12102112201812. Its totient is φ = 12102112201810.

The previous prime is 12102112201783. The next prime is 12102112201819. The reversal of 12102112201811 is 11810221120121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12102112201811 - 2⁴² = 7704065690707 is a prime.

It is a super-2 number, since 2×12102112201811² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12102112201819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051056100905 + 6051056100906.

It is an arithmetic number, because the mean of its divisors is an integer number (6051056100906).

Almost surely, 2^{12102112201811} is an apocalyptic number.

12102112201811 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102112201811 is an equidigital number, since it uses as much as digits as its factorization.

12102112201811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 23.

Adding to 12102112201811 its reverse (11810221120121), we get a palindrome (23912333321932).

The spelling of 12102112201811 in words is "twelve trillion, one hundred two billion, one hundred twelve million, two hundred one thousand, eight hundred eleven".