12201611 has 2 divisors, whose sum is σ = 12201612. Its totient is φ = 12201610.

The previous prime is 12201599. The next prime is 12201619. The reversal of 12201611 is 11610221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12201611 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12201619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100805 + 6100806.

It is an arithmetic number, because the mean of its divisors is an integer number (6100806).

Almost surely, 2^12201611 is an apocalyptic number.

12201611 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201611 is an equidigital number, since it uses as much as digits as its factorization.

12201611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 12201611 is about 3493.0804456811. The cubic root of 12201611 is about 230.2178842653.

Adding to 12201611 its reverse (11610221), we get a palindrome (23811832).

The spelling of 12201611 in words is "twelve million, two hundred one thousand, six hundred eleven".