121344002221 has 8 divisors (see below), whose sum is σ = 130682369664. Its totient is φ = 112006236720.

The previous prime is 121344002203. The next prime is 121344002261. The reversal of 121344002221 is 122200443121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121344002221 - 2⁷ = 121344002093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121344002192 and 121344002201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121344002261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323520 + ... + 589366.

It is an arithmetic number, because the mean of its divisors is an integer number (16335296208).

Almost surely, 2^121344002221 is an apocalyptic number.

It is an amenable number.

121344002221 is a deficient number, since it is larger than the sum of its proper divisors (9338367443).

121344002221 is a wasteful number, since it uses less digits than its factorization.

121344002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300971.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 121344002221 its reverse (122200443121), we get a palindrome (243544445342).

The spelling of 121344002221 in words is "one hundred twenty-one billion, three hundred forty-four million, two thousand, two hundred twenty-one".