121222111303 has 4 divisors (see below), whose sum is σ = 121222843560. Its totient is φ = 121221379048.

The previous prime is 121222111253. The next prime is 121222111349. The reversal of 121222111303 is 303111222121.

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, and also an emirpimes, since its reverse is a distinct semiprime: 303111222121 = 17987 ⋅16851683.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121222111303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121222115303) 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 in 3 ways as a sum of consecutive naturals, for example, 13176 + ... + 492562.

It is an arithmetic number, because the mean of its divisors is an integer number (30305710890).

Almost surely, 2^121222111303 is an apocalyptic number.

121222111303 is a deficient number, since it is larger than the sum of its proper divisors (732257).

121222111303 is an equidigital number, since it uses as much as digits as its factorization.

121222111303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732256.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121222111303 its reverse (303111222121), we get a palindrome (424333333424).

The spelling of 121222111303 in words is "one hundred twenty-one billion, two hundred twenty-two million, one hundred eleven thousand, three hundred three".