2421103320021 has 8 divisors (see below), whose sum is σ = 3281058051424. Its totient is φ = 1587608734320.

The previous prime is 2421103319983. The next prime is 2421103320037. The reversal of 2421103320021 is 1200233011242.

2421103320021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2421103320021 - 2²³ = 2421094931413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2421103320021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421103320091) 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, 6615036211 + ... + 6615036576.

It is an arithmetic number, because the mean of its divisors is an integer number (410132256428).

Almost surely, 2^{2421103320021} is an apocalyptic number.

It is an amenable number.

2421103320021 is a deficient number, since it is larger than the sum of its proper divisors (859954731403).

2421103320021 is a wasteful number, since it uses less digits than its factorization.

2421103320021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13230072851.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2421103320021 its reverse (1200233011242), we get a palindrome (3621336331263).

The spelling of 2421103320021 in words is "two trillion, four hundred twenty-one billion, one hundred three million, three hundred twenty thousand, twenty-one".