13333220121 has 16 divisors (see below), whose sum is σ = 19271934080. Its totient is φ = 8150716800.

The previous prime is 13333220101. The next prime is 13333220179. The reversal of 13333220121 is 12102233331.

13333220121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13333220121 - 2⁹ = 13333219609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13333220101) 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 15 ways as a sum of consecutive naturals, for example, 1126156 + ... + 1137933.

It is an arithmetic number, because the mean of its divisors is an integer number (1204495880).

Almost surely, 2^13333220121 is an apocalyptic number.

It is an amenable number.

13333220121 is a deficient number, since it is larger than the sum of its proper divisors (5938713959).

13333220121 is a wasteful number, since it uses less digits than its factorization.

13333220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264256.

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

Adding to 13333220121 its reverse (12102233331), we get a palindrome (25435453452).

The spelling of 13333220121 in words is "thirteen billion, three hundred thirty-three million, two hundred twenty thousand, one hundred twenty-one".