2420221333 has 4 divisors (see below), whose sum is σ = 2423039680. Its totient is φ = 2417402988.

The previous prime is 2420221301. The next prime is 2420221379. The reversal of 2420221333 is 3331220242.

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 2420221333 - 2⁵ = 2420221301 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 (2420221033) 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, 1407885 + ... + 1409602.

It is an arithmetic number, because the mean of its divisors is an integer number (605759920).

Almost surely, 2^2420221333 is an apocalyptic number.

It is an amenable number.

2420221333 is a deficient number, since it is larger than the sum of its proper divisors (2818347).

2420221333 is an equidigital number, since it uses as much as digits as its factorization.

2420221333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818346.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 2420221333 is about 49195.7450700769. The cubic root of 2420221333 is about 1342.6156182596.

Adding to 2420221333 its reverse (3331220242), we get a palindrome (5751441575).

The spelling of 2420221333 in words is "two billion, four hundred twenty million, two hundred twenty-one thousand, three hundred thirty-three".