12201010012111 has 2 divisors, whose sum is σ = 12201010012112. Its totient is φ = 12201010012110.

The previous prime is 12201010012073. The next prime is 12201010012127. The reversal of 12201010012111 is 11121001010221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12201010012111 - 2²⁵ = 12200976457679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12201010012091 and 12201010012100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12201010012171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100505006055 + 6100505006056.

It is an arithmetic number, because the mean of its divisors is an integer number (6100505006056).

Almost surely, 2^{12201010012111} is an apocalyptic number.

12201010012111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201010012111 is an equidigital number, since it uses as much as digits as its factorization.

12201010012111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12201010012111 its reverse (11121001010221), we get a palindrome (23322011022332).

The spelling of 12201010012111 in words is "twelve trillion, two hundred one billion, ten million, twelve thousand, one hundred eleven".