2121040501 has 8 divisors (see below), whose sum is σ = 2178352800. Its totient is φ = 2064440400.

The previous prime is 2121040499. The next prime is 2121040511. The reversal of 2121040501 is 1050401212.

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 2121040501 - 2¹ = 2121040499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121040511) 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 7 ways as a sum of consecutive naturals, for example, 172011 + ... + 183928.

It is an arithmetic number, because the mean of its divisors is an integer number (272294100).

Almost surely, 2^2121040501 is an apocalyptic number.

It is an amenable number.

2121040501 is a deficient number, since it is larger than the sum of its proper divisors (57312299).

2121040501 is a wasteful number, since it uses less digits than its factorization.

2121040501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356099.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 2121040501 is about 46054.7554656411. The cubic root of 2121040501 is about 1284.8417900875.

Adding to 2121040501 its reverse (1050401212), we get a palindrome (3171441713).

The spelling of 2121040501 in words is "two billion, one hundred twenty-one million, forty thousand, five hundred one".