121330221303 has 8 divisors (see below), whose sum is σ = 161775589248. Its totient is φ = 80885833784.

The previous prime is 121330221283. The next prime is 121330221323. The reversal of 121330221303 is 303122033121.

It is an interprime number because it is at equal distance from previous prime (121330221283) and next prime (121330221323).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121330221303 - 2¹⁸ = 121329959159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121330221303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121330221323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122350 + ... + 507572.

It is an arithmetic number, because the mean of its divisors is an integer number (20221948656).

Almost surely, 2^121330221303 is an apocalyptic number.

121330221303 is a deficient number, since it is larger than the sum of its proper divisors (40445367945).

121330221303 is a wasteful number, since it uses less digits than its factorization.

121330221303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490213.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 121330221303 its reverse (303122033121), we get a palindrome (424452254424).

The spelling of 121330221303 in words is "one hundred twenty-one billion, three hundred thirty million, two hundred twenty-one thousand, three hundred three".