12122120220203 has 4 divisors (see below), whose sum is σ = 13853851680240. Its totient is φ = 10390388760168.

The previous prime is 12122120220157. The next prime is 12122120220211. The reversal of 12122120220203 is 30202202122121.

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 12122120220203 - 2⁶ = 12122120220139 is a prime.

It is a super-2 number, since 2×12122120220203² (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 (12122120222203) 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 3 ways as a sum of consecutive naturals, for example, 865865730008 + ... + 865865730021.

It is an arithmetic number, because the mean of its divisors is an integer number (3463462920060).

Almost surely, 2^{12122120220203} is an apocalyptic number.

12122120220203 is a deficient number, since it is larger than the sum of its proper divisors (1731731460037).

12122120220203 is an equidigital number, since it uses as much as digits as its factorization.

12122120220203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731731460036.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12122120220203 its reverse (30202202122121), we get a palindrome (42324322342324).

The spelling of 12122120220203 in words is "twelve trillion, one hundred twenty-two billion, one hundred twenty million, two hundred twenty thousand, two hundred three".