121221012332303 has 16 divisors (see below), whose sum is σ = 131242620321792. Its totient is φ = 111299083500000.

The previous prime is 121221012332263. The next prime is 121221012332317. The reversal of 121221012332303 is 303233210122121.

It is a cyclic number.

It is not a de Polignac number, because 121221012332303 - 2²⁶ = 121220945223439 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 (121221012332353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21817928 + ... + 26804178.

It is an arithmetic number, because the mean of its divisors is an integer number (8202663770112).

Almost surely, 2^{121221012332303} is an apocalyptic number.

121221012332303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121221012332303 is a deficient number, since it is larger than the sum of its proper divisors (10021607989489).

121221012332303 is a wasteful number, since it uses less digits than its factorization.

121221012332303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4996246.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 121221012332303 its reverse (303233210122121), we get a palindrome (424454222454424).

The spelling of 121221012332303 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, twelve million, three hundred thirty-two thousand, three hundred three".