12211201012103 has 4 divisors (see below), whose sum is σ = 12211209655560. Its totient is φ = 12211192368648.

The previous prime is 12211201012091. The next prime is 12211201012273. The reversal of 12211201012103 is 30121010211221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12211201012103 - 2⁶ = 12211201012039 is a prime.

It is a super-2 number, since 2×12211201012103² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211201012403) 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, 1653425 + ... + 5211162.

It is an arithmetic number, because the mean of its divisors is an integer number (3052802413890).

Almost surely, 2^{12211201012103} is an apocalyptic number.

12211201012103 is a deficient number, since it is larger than the sum of its proper divisors (8643457).

12211201012103 is an equidigital number, since it uses as much as digits as its factorization.

12211201012103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8643456.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12211201012103 its reverse (30121010211221), we get a palindrome (42332211223324).

The spelling of 12211201012103 in words is "twelve trillion, two hundred eleven billion, two hundred one million, twelve thousand, one hundred three".