30432202442221 has 4 divisors (see below), whose sum is σ = 30438196578172. Its totient is φ = 30426208306272.

The previous prime is 30432202442167. The next prime is 30432202442231. The reversal of 30432202442221 is 12224420223403.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22994528058121 + 7437674384100 = 4795261^2 + 2727210^2 .

It is a cyclic number.

It is not a de Polignac number, because 30432202442221 - 2⁹ = 30432202441709 is a prime.

It is a super-2 number, since 2×30432202442221² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30432202442231) 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, 2997060360 + ... + 2997070513.

It is an arithmetic number, because the mean of its divisors is an integer number (7609549144543).

Almost surely, 2^{30432202442221} is an apocalyptic number.

It is an amenable number.

30432202442221 is a deficient number, since it is larger than the sum of its proper divisors (5994135951).

30432202442221 is an equidigital number, since it uses as much as digits as its factorization.

30432202442221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5994135950.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 30432202442221 its reverse (12224420223403), we get a palindrome (42656622665624).

The spelling of 30432202442221 in words is "thirty trillion, four hundred thirty-two billion, two hundred two million, four hundred forty-two thousand, two hundred twenty-one".