2440020022221 has 4 divisors (see below), whose sum is σ = 3253360029632. Its totient is φ = 1626680014812.

The previous prime is 2440020022159. The next prime is 2440020022243. The reversal of 2440020022221 is 1222200200442.

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 not a de Polignac number, because 2440020022221 - 2¹⁷ = 2440019891149 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 (2440020022421) 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, 406670003701 + ... + 406670003706.

It is an arithmetic number, because the mean of its divisors is an integer number (813340007408).

Almost surely, 2^{2440020022221} is an apocalyptic number.

It is an amenable number.

2440020022221 is a deficient number, since it is larger than the sum of its proper divisors (813340007411).

2440020022221 is an equidigital number, since it uses as much as digits as its factorization.

2440020022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813340007410.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 2440020022221 its reverse (1222200200442), we get a palindrome (3662220222663).

The spelling of 2440020022221 in words is "two trillion, four hundred forty billion, twenty million, twenty-two thousand, two hundred twenty-one".