12211202222011 has 4 divisors (see below), whose sum is σ = 13150525469872. Its totient is φ = 11271878974152.

The previous prime is 12211202221993. The next prime is 12211202222053. The reversal of 12211202222011 is 11022220211221.

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 12211202222011 - 2⁹ = 12211202221499 is a prime.

It is a super-2 number, since 2×12211202222011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12211202222011.

It is not an unprimeable number, because it can be changed into a prime (12211202222081) 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, 469661623911 + ... + 469661623936.

It is an arithmetic number, because the mean of its divisors is an integer number (3287631367468).

Almost surely, 2^{12211202222011} is an apocalyptic number.

12211202222011 is a deficient number, since it is larger than the sum of its proper divisors (939323247861).

12211202222011 is an equidigital number, since it uses as much as digits as its factorization.

12211202222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939323247860.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12211202222011 its reverse (11022220211221), we get a palindrome (23233422433232).

The spelling of 12211202222011 in words is "twelve trillion, two hundred eleven billion, two hundred two million, two hundred twenty-two thousand, eleven".