213331330121 has 32 divisors (see below), whose sum is σ = 263947756800. Its totient is φ = 167900947200.

The previous prime is 213331330109. The next prime is 213331330123. The reversal of 213331330121 is 121033133312.

It is not a de Polignac number, because 213331330121 - 2¹⁴ = 213331313737 is a prime.

It is a super-2 number, since 2×213331330121² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213331330123) 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 31 ways as a sum of consecutive naturals, for example, 13408271 + ... + 13424171.

It is an arithmetic number, because the mean of its divisors is an integer number (8248367400).

Almost surely, 2^213331330121 is an apocalyptic number.

It is an amenable number.

213331330121 is a deficient number, since it is larger than the sum of its proper divisors (50616426679).

213331330121 is a wasteful number, since it uses less digits than its factorization.

213331330121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16689.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 213331330121 its reverse (121033133312), we get a palindrome (334364463433).

The spelling of 213331330121 in words is "two hundred thirteen billion, three hundred thirty-one million, three hundred thirty thousand, one hundred twenty-one".