22030023221 has 4 divisors (see below), whose sum is σ = 22625429292. Its totient is φ = 21434617152.

The previous prime is 22030023173. The next prime is 22030023227. The reversal of 22030023221 is 12232003022.

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 13728808900 + 8301214321 = 117170^2 + 91111^2 .

It is a cyclic number.

It is not a de Polignac number, because 22030023221 - 2¹⁰ = 22030022197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22030023221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22030023227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297702980 + ... + 297703053.

It is an arithmetic number, because the mean of its divisors is an integer number (5656357323).

Almost surely, 2^22030023221 is an apocalyptic number.

It is an amenable number.

22030023221 is a deficient number, since it is larger than the sum of its proper divisors (595406071).

22030023221 is an equidigital number, since it uses as much as digits as its factorization.

22030023221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595406070.

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

Adding to 22030023221 its reverse (12232003022), we get a palindrome (34262026243).

The spelling of 22030023221 in words is "twenty-two billion, thirty million, twenty-three thousand, two hundred twenty-one".