30023022221 has 16 divisors (see below), whose sum is σ = 31579356144. Its totient is φ = 28514156544.

The previous prime is 30023022209. The next prime is 30023022223. The reversal of 30023022221 is 12222032003.

It can be written as a sum of positive squares in 8 ways, for example, as 7777299721 + 22245722500 = 88189^2 + 149150^2 .

It is a cyclic number.

It is not a de Polignac number, because 30023022221 - 2²⁶ = 29955913357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30023022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30023022223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204701 + ... + 319293.

It is an arithmetic number, because the mean of its divisors is an integer number (1973709759).

Almost surely, 2^30023022221 is an apocalyptic number.

It is an amenable number.

30023022221 is a deficient number, since it is larger than the sum of its proper divisors (1556333923).

30023022221 is a wasteful number, since it uses less digits than its factorization.

30023022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114800.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 30023022221 its reverse (12222032003), we get a palindrome (42245054224).

The spelling of 30023022221 in words is "thirty billion, twenty-three million, twenty-two thousand, two hundred twenty-one".