12201012111111 has 32 divisors (see below), whose sum is σ = 16691163616512. Its totient is φ = 7925159773440.

The previous prime is 12201012110999. The next prime is 12201012111121. The reversal of 12201012111111 is 11111121010221.

12201012111111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12201012111111 - 2¹¹ = 12201012109063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201012111121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234875401 + ... + 234927341.

It is an arithmetic number, because the mean of its divisors is an integer number (521598863016).

Almost surely, 2^{12201012111111} is an apocalyptic number.

12201012111111 is a deficient number, since it is larger than the sum of its proper divisors (4490151505401).

12201012111111 is a wasteful number, since it uses less digits than its factorization.

12201012111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65023.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 12201012111111 its reverse (11111121010221), we get a palindrome (23312133121332).

The spelling of 12201012111111 in words is "twelve trillion, two hundred one billion, twelve million, one hundred eleven thousand, one hundred eleven".