2224642021 has 4 divisors (see below), whose sum is σ = 2542448032. Its totient is φ = 1906836012.

The previous prime is 2224642009. The next prime is 2224642027. The reversal of 2224642021 is 1202464222.

2224642021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1202464222 = 2 ⋅601232111.

It is a cyclic number.

It is not a de Polignac number, because 2224642021 - 2⁵ = 2224641989 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 (2224642027) 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, 158902995 + ... + 158903008.

It is an arithmetic number, because the mean of its divisors is an integer number (635612008).

Almost surely, 2^2224642021 is an apocalyptic number.

It is an amenable number.

2224642021 is a deficient number, since it is larger than the sum of its proper divisors (317806011).

2224642021 is an equidigital number, since it uses as much as digits as its factorization.

2224642021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317806010.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 2224642021 is about 47166.1109378333. The cubic root of 2224642021 is about 1305.4293681661.

The spelling of 2224642021 in words is "two billion, two hundred twenty-four million, six hundred forty-two thousand, twenty-one".