12201322211 has 4 divisors (see below), whose sum is σ = 13139885472. Its totient is φ = 11262758952.

The previous prime is 12201322171. The next prime is 12201322261. The reversal of 12201322211 is 11222310221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11222310221 = 73 ⋅153730277.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12201322211 is a prime.

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 12201322211.

It is not an unprimeable number, because it can be changed into a prime (12201322261) 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, 469281611 + ... + 469281636.

It is an arithmetic number, because the mean of its divisors is an integer number (3284971368).

Almost surely, 2^12201322211 is an apocalyptic number.

12201322211 is a deficient number, since it is larger than the sum of its proper divisors (938563261).

12201322211 is an equidigital number, since it uses as much as digits as its factorization.

12201322211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938563260.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12201322211 its reverse (11222310221), we get a palindrome (23423632432).

The spelling of 12201322211 in words is "twelve billion, two hundred one million, three hundred twenty-two thousand, two hundred eleven".