213322131220121 has 48 divisors (see below), whose sum is σ = 268418302951680. Its totient is φ = 165950056272000.

The previous prime is 213322131220091. The next prime is 213322131220129. The reversal of 213322131220121 is 121022131223312.

213322131220121 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 213322131220121 - 2¹⁰ = 213322131219097 is a prime.

It is a super-3 number, since 3×213322131220121³ (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (213322131220129) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7381118771 + ... + 7381147671.

It is an arithmetic number, because the mean of its divisors is an integer number (5592047978160).

Almost surely, 2^{213322131220121} is an apocalyptic number.

It is an amenable number.

213322131220121 is a deficient number, since it is larger than the sum of its proper divisors (55096171731559).

213322131220121 is a wasteful number, since it uses less digits than its factorization.

213322131220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43046 (or 43035 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 213322131220121 its reverse (121022131223312), we get a palindrome (334344262443433).

The spelling of 213322131220121 in words is "two hundred thirteen trillion, three hundred twenty-two billion, one hundred thirty-one million, two hundred twenty thousand, one hundred twenty-one".