121442241321 has 12 divisors (see below), whose sum is σ = 175442042880. Its totient is φ = 80949737880.

The previous prime is 121442241299. The next prime is 121442241337. The reversal of 121442241321 is 123142244121.

121442241321 is a `hidden beast` number, since 1 + 214 + 422 + 4 + 1 + 3 + 21 = 666.

It is not a de Polignac number, because 121442241321 - 2⁵ = 121442241289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121442241341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 914041 + ... + 1038438.

It is an arithmetic number, because the mean of its divisors is an integer number (14620170240).

Almost surely, 2^121442241321 is an apocalyptic number.

It is an amenable number.

121442241321 is a deficient number, since it is larger than the sum of its proper divisors (53999801559).

121442241321 is a wasteful number, since it uses less digits than its factorization.

121442241321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1959396 (or 1959393 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

Adding to 121442241321 its reverse (123142244121), we get a palindrome (244584485442).

The spelling of 121442241321 in words is "one hundred twenty-one billion, four hundred forty-two million, two hundred forty-one thousand, three hundred twenty-one".