22303033221 has 16 divisors (see below), whose sum is σ = 33990028928. Its totient is φ = 12742920000.

The previous prime is 22303033217. The next prime is 22303033223. The reversal of 22303033221 is 12233030322.

It is not a de Polignac number, because 22303033221 - 2² = 22303033217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22303033223) 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 15 ways as a sum of consecutive naturals, for example, 104571 + ... + 235671.

It is an arithmetic number, because the mean of its divisors is an integer number (2124376808).

Almost surely, 2^22303033221 is an apocalyptic number.

22303033221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22303033221 is a deficient number, since it is larger than the sum of its proper divisors (11686995707).

22303033221 is a wasteful number, since it uses less digits than its factorization.

22303033221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139212.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 22303033221 its reverse (12233030322), we get a palindrome (34536063543).

The spelling of 22303033221 in words is "twenty-two billion, three hundred three million, thirty-three thousand, two hundred twenty-one".