12211111322203 has 4 divisors (see below), whose sum is σ = 12411293475088. Its totient is φ = 12010929169320.

The previous prime is 12211111322173. The next prime is 12211111322213. The reversal of 12211111322203 is 30222311111221.

It is a happy number.

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 12211111322203 - 2²⁹ = 12210574451291 is a prime.

It is a super-2 number, since 2×12211111322203² (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 (12211111322213) 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, 100091076351 + ... + 100091076472.

It is an arithmetic number, because the mean of its divisors is an integer number (3102823368772).

Almost surely, 2^{12211111322203} is an apocalyptic number.

12211111322203 is a deficient number, since it is larger than the sum of its proper divisors (200182152885).

12211111322203 is an equidigital number, since it uses as much as digits as its factorization.

12211111322203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200182152884.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 12211111322203 its reverse (30222311111221), we get a palindrome (42433422433424).

The spelling of 12211111322203 in words is "twelve trillion, two hundred eleven billion, one hundred eleven million, three hundred twenty-two thousand, two hundred three".