12221200011011 has 4 divisors (see below), whose sum is σ = 12246090439224. Its totient is φ = 12196309582800.

The previous prime is 12221200010953. The next prime is 12221200011019. The reversal of 12221200011011 is 11011000212221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12221200011011 - 2³⁴ = 12204020141827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221200011019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12445213370 + ... + 12445214351.

It is an arithmetic number, because the mean of its divisors is an integer number (3061522609806).

Almost surely, 2^{12221200011011} is an apocalyptic number.

12221200011011 is a deficient number, since it is larger than the sum of its proper divisors (24890428213).

12221200011011 is an equidigital number, since it uses as much as digits as its factorization.

12221200011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24890428212.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12221200011011 its reverse (11011000212221), we get a palindrome (23232200223232).

The spelling of 12221200011011 in words is "twelve trillion, two hundred twenty-one billion, two hundred million, eleven thousand, eleven".