2121233221203 has 16 divisors (see below), whose sum is σ = 2850724331520. Its totient is φ = 1402949915136.

The previous prime is 2121233221187. The next prime is 2121233221223. The reversal of 2121233221203 is 3021223321212.

It is not a de Polignac number, because 2121233221203 - 2⁴ = 2121233221187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121233221223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8088726 + ... + 8346852.

It is an arithmetic number, because the mean of its divisors is an integer number (178170270720).

Almost surely, 2^{2121233221203} is an apocalyptic number.

2121233221203 is a deficient number, since it is larger than the sum of its proper divisors (729491110317).

2121233221203 is a wasteful number, since it uses less digits than its factorization.

2121233221203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279826.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 2121233221203 its reverse (3021223321212), we get a palindrome (5142456542415).

The spelling of 2121233221203 in words is "two trillion, one hundred twenty-one billion, two hundred thirty-three million, two hundred twenty-one thousand, two hundred three".