12201121033523 has 2 divisors, whose sum is σ = 12201121033524. Its totient is φ = 12201121033522.

The previous prime is 12201121033511. The next prime is 12201121033547. The reversal of 12201121033523 is 32533012110221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12201121033523 - 2⁸ = 12201121033267 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12201121033492 and 12201121033501.

It is not a weakly prime, because it can be changed into another prime (12201121030523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100560516761 + 6100560516762.

It is an arithmetic number, because the mean of its divisors is an integer number (6100560516762).

Almost surely, 2^{12201121033523} is an apocalyptic number.

12201121033523 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201121033523 is an equidigital number, since it uses as much as digits as its factorization.

12201121033523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 12201121033523 its reverse (32533012110221), we get a palindrome (44734133143744).

The spelling of 12201121033523 in words is "twelve trillion, two hundred one billion, one hundred twenty-one million, thirty-three thousand, five hundred twenty-three".