12211211210203 has 4 divisors (see below), whose sum is σ = 12213130916488. Its totient is φ = 12209291503920.

The previous prime is 12211211210101. The next prime is 12211211210239. The reversal of 12211211210203 is 30201211211221.

12211211210203 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 12211211210203 - 2²⁵ = 12211177655771 is a prime.

It is a super-2 number, since 2×12211211210203² (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 (12211211210273) 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, 959843601 + ... + 959856322.

It is an arithmetic number, because the mean of its divisors is an integer number (3053282729122).

Almost surely, 2^{12211211210203} is an apocalyptic number.

12211211210203 is a deficient number, since it is larger than the sum of its proper divisors (1919706285).

12211211210203 is an equidigital number, since it uses as much as digits as its factorization.

12211211210203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919706284.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 12211211210203 its reverse (30201211211221), we get a palindrome (42412422421424).

The spelling of 12211211210203 in words is "twelve trillion, two hundred eleven billion, two hundred eleven million, two hundred ten thousand, two hundred three".