213334442121 has 64 divisors (see below), whose sum is σ = 308485532160. Its totient is φ = 130785177600.

The previous prime is 213334442119. The next prime is 213334442129. The reversal of 213334442121 is 121244433312.

It is not a de Polignac number, because 213334442121 - 2¹ = 213334442119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213334442129) 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 63 ways as a sum of consecutive naturals, for example, 112221271 + ... + 112223171.

It is an arithmetic number, because the mean of its divisors is an integer number (4820086440).

Almost surely, 2^213334442121 is an apocalyptic number.

It is an amenable number.

213334442121 is a deficient number, since it is larger than the sum of its proper divisors (95151090039).

213334442121 is a wasteful number, since it uses less digits than its factorization.

213334442121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466.

The product of its digits is 13824, while the sum is 30.

Adding to 213334442121 its reverse (121244433312), we get a palindrome (334578875433).

The spelling of 213334442121 in words is "two hundred thirteen billion, three hundred thirty-four million, four hundred forty-two thousand, one hundred twenty-one".