12201122124211 has 4 divisors (see below), whose sum is σ = 12222267917032. Its totient is φ = 12179976331392.

The previous prime is 12201122124143. The next prime is 12201122124221. The reversal of 12201122124211 is 11242122110221.

12201122124211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12201122124211 - 2¹⁹ = 12201121599923 is a prime.

It is a super-2 number, since 2×12201122124211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12201122124221) 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, 10572895545 + ... + 10572896698.

It is an arithmetic number, because the mean of its divisors is an integer number (3055566979258).

Almost surely, 2^{12201122124211} is an apocalyptic number.

12201122124211 is a deficient number, since it is larger than the sum of its proper divisors (21145792821).

12201122124211 is an equidigital number, since it uses as much as digits as its factorization.

12201122124211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21145792820.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 12201122124211 its reverse (11242122110221), we get a palindrome (23443244234432).

The spelling of 12201122124211 in words is "twelve trillion, two hundred one billion, one hundred twenty-two million, one hundred twenty-four thousand, two hundred eleven".