2421220441 has 4 divisors (see below), whose sum is σ = 2421401472. Its totient is φ = 2421039412.

The previous prime is 2421220421. The next prime is 2421220471. The reversal of 2421220441 is 1440221242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2421220441 - 2⁷ = 2421220313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2421220421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68701 + ... + 97786.

It is an arithmetic number, because the mean of its divisors is an integer number (605350368).

Almost surely, 2^2421220441 is an apocalyptic number.

It is an amenable number.

2421220441 is a deficient number, since it is larger than the sum of its proper divisors (181031).

2421220441 is a wasteful number, since it uses less digits than its factorization.

2421220441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181030.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 2421220441 is about 49205.8984370776. The cubic root of 2421220441 is about 1342.8003442655.

Adding to 2421220441 its reverse (1440221242), we get a palindrome (3861441683).

The spelling of 2421220441 in words is "two billion, four hundred twenty-one million, two hundred twenty thousand, four hundred forty-one".