30440210221 has 4 divisors (see below), whose sum is σ = 30505393152. Its totient is φ = 30375027292.

The previous prime is 30440210201. The next prime is 30440210231. The reversal of 30440210221 is 12201204403.

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: 12201204403 = 49199 ⋅247997.

It is a cyclic number.

It is not a de Polignac number, because 30440210221 - 2²⁵ = 30406655789 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 (30440210201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32590765 + ... + 32591698.

It is an arithmetic number, because the mean of its divisors is an integer number (7626348288).

Almost surely, 2^30440210221 is an apocalyptic number.

It is an amenable number.

30440210221 is a deficient number, since it is larger than the sum of its proper divisors (65182931).

30440210221 is an equidigital number, since it uses as much as digits as its factorization.

30440210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65182930.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 30440210221 its reverse (12201204403), we get a palindrome (42641414624).

The spelling of 30440210221 in words is "thirty billion, four hundred forty million, two hundred ten thousand, two hundred twenty-one".