422240411221 has 4 divisors (see below), whose sum is σ = 432059955712. Its totient is φ = 412420866732.

The previous prime is 422240411213. The next prime is 422240411309. The reversal of 422240411221 is 122114042224.

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 422240411221 - 2³ = 422240411213 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 (422240411321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4909772181 + ... + 4909772266.

It is an arithmetic number, because the mean of its divisors is an integer number (108014988928).

Almost surely, 2^422240411221 is an apocalyptic number.

It is an amenable number.

422240411221 is a deficient number, since it is larger than the sum of its proper divisors (9819544491).

422240411221 is an equidigital number, since it uses as much as digits as its factorization.

422240411221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9819544490.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 422240411221 its reverse (122114042224), we get a palindrome (544354453445).

The spelling of 422240411221 in words is "four hundred twenty-two billion, two hundred forty million, four hundred eleven thousand, two hundred twenty-one".