2122121303 has 2 divisors, whose sum is σ = 2122121304. Its totient is φ = 2122121302.

The previous prime is 2122121293. The next prime is 2122121321. The reversal of 2122121303 is 3031212212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2122121303 - 2²⁰ = 2121072727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122121003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061060651 + 1061060652.

It is an arithmetic number, because the mean of its divisors is an integer number (1061060652).

Almost surely, 2^2122121303 is an apocalyptic number.

2122121303 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122121303 is an equidigital number, since it uses as much as digits as its factorization.

2122121303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2122121303 is about 46066.4878517996. The cubic root of 2122121303 is about 1285.0599886200.

Adding to 2122121303 its reverse (3031212212), we get a palindrome (5153333515).

Subtracting 2122121303 from its reverse (3031212212), we obtain a palindrome (909090909).

It can be divided in two parts, 21221 and 21303, that added together give a palindrome (42524).

The spelling of 2122121303 in words is "two billion, one hundred twenty-two million, one hundred twenty-one thousand, three hundred three".