2443142221 has 8 divisors (see below), whose sum is σ = 2632773024. Its totient is φ = 2253753840.

The previous prime is 2443142183. The next prime is 2443142231. The reversal of 2443142221 is 1222413442.

2443142221 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 2443142221 - 2²⁹ = 1906271309 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 (2443142231) 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, 39391 + ... + 80236.

It is an arithmetic number, because the mean of its divisors is an integer number (329096628).

Almost surely, 2^2443142221 is an apocalyptic number.

It is an amenable number.

2443142221 is a deficient number, since it is larger than the sum of its proper divisors (189630803).

2443142221 is a wasteful number, since it uses less digits than its factorization.

2443142221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121211.

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

The square root of 2443142221 is about 49428.1521099059. The cubic root of 2443142221 is about 1346.8407554065.

Adding to 2443142221 its reverse (1222413442), we get a palindrome (3665555663).

The spelling of 2443142221 in words is "two billion, four hundred forty-three million, one hundred forty-two thousand, two hundred twenty-one".