12203211211 has 4 divisors (see below), whose sum is σ = 12222249624. Its totient is φ = 12184172800.

The previous prime is 12203211193. The next prime is 12203211253. The reversal of 12203211211 is 11211230221.

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 12203211211 - 2¹⁷ = 12203080139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12203211311) 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, 9518245 + ... + 9519526.

It is an arithmetic number, because the mean of its divisors is an integer number (3055562406).

Almost surely, 2^12203211211 is an apocalyptic number.

12203211211 is a deficient number, since it is larger than the sum of its proper divisors (19038413).

12203211211 is an equidigital number, since it uses as much as digits as its factorization.

12203211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19038412.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12203211211 its reverse (11211230221), we get a palindrome (23414441432).

The spelling of 12203211211 in words is "twelve billion, two hundred three million, two hundred eleven thousand, two hundred eleven".