1212204233203 has 4 divisors (see below), whose sum is σ = 1240395029368. Its totient is φ = 1184013437040.

The previous prime is 1212204233197. The next prime is 1212204233213. The reversal of 1212204233203 is 3023324022121.

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 1212204233203 - 2³³ = 1203614298611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212204233213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14095398018 + ... + 14095398103.

It is an arithmetic number, because the mean of its divisors is an integer number (310098757342).

Almost surely, 2^{1212204233203} is an apocalyptic number.

1212204233203 is a deficient number, since it is larger than the sum of its proper divisors (28190796165).

1212204233203 is an equidigital number, since it uses as much as digits as its factorization.

1212204233203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28190796164.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1212204233203 its reverse (3023324022121), we get a palindrome (4235528255324).

The spelling of 1212204233203 in words is "one trillion, two hundred twelve billion, two hundred four million, two hundred thirty-three thousand, two hundred three".