12201021112011 has 32 divisors (see below), whose sum is σ = 16581951977472. Its totient is φ = 7978357336320.

The previous prime is 12201021111991. The next prime is 12201021112073. The reversal of 12201021112011 is 11021112010221.

It is a happy number.

It is not a de Polignac number, because 12201021112011 - 2⁶ = 12201021111947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12201021112711) 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, 47292081 + ... + 47549373.

It is an arithmetic number, because the mean of its divisors is an integer number (518185999296).

Almost surely, 2^{12201021112011} is an apocalyptic number.

12201021112011 is a deficient number, since it is larger than the sum of its proper divisors (4380930865461).

12201021112011 is a wasteful number, since it uses less digits than its factorization.

12201021112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258563.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12201021112011 its reverse (11021112010221), we get a palindrome (23222133122232).

The spelling of 12201021112011 in words is "twelve trillion, two hundred one billion, twenty-one million, one hundred twelve thousand, eleven".