2121121030223 has 8 divisors (see below), whose sum is σ = 2284649000928. Its totient is φ = 1957645175904.

The previous prime is 2121121030211. The next prime is 2121121030261. The reversal of 2121121030223 is 3220301211212.

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 2121121030223 - 2²⁰ = 2121119981647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121121030195 and 2121121030204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121121030823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12944540 + ... + 13107377.

It is an arithmetic number, because the mean of its divisors is an integer number (285581125116).

Almost surely, 2^{2121121030223} is an apocalyptic number.

2121121030223 is a deficient number, since it is larger than the sum of its proper divisors (163527970705).

2121121030223 is a wasteful number, since it uses less digits than its factorization.

2121121030223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26058193.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2121121030223 its reverse (3220301211212), we get a palindrome (5341422241435).

The spelling of 2121121030223 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-one million, thirty thousand, two hundred twenty-three".