30023032110221 has 4 divisors (see below), whose sum is σ = 30024870308892. Its totient is φ = 30021193911552.

The previous prime is 30023032110187. The next prime is 30023032110283. The reversal of 30023032110221 is 12201123032003.

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 2515744932100 + 27507287178121 = 1586110^2 + 5244739^2 .

It is a cyclic number.

It is not a de Polignac number, because 30023032110221 - 2³⁸ = 29748154203277 is a prime.

It is a super-2 number, since 2×30023032110221² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30023032110193 and 30023032110202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30023032119221) 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, 919074836 + ... + 919107501.

It is an arithmetic number, because the mean of its divisors is an integer number (7506217577223).

Almost surely, 2^{30023032110221} is an apocalyptic number.

It is an amenable number.

30023032110221 is a deficient number, since it is larger than the sum of its proper divisors (1838198671).

30023032110221 is a wasteful number, since it uses less digits than its factorization.

30023032110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838198670.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30023032110221 its reverse (12201123032003), we get a palindrome (42224155142224).

The spelling of 30023032110221 in words is "thirty trillion, twenty-three billion, thirty-two million, one hundred ten thousand, two hundred twenty-one".