22203300021 has 16 divisors (see below), whose sum is σ = 34407052800. Its totient is φ = 12472555248.

The previous prime is 22203300019. The next prime is 22203300029. The reversal of 22203300021 is 12000330222.

It is not a de Polignac number, because 22203300021 - 2¹ = 22203300019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22203300029) 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, 8958931 + ... + 8961408.

It is an arithmetic number, because the mean of its divisors is an integer number (2150440800).

Almost surely, 2^22203300021 is an apocalyptic number.

22203300021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22203300021 is a deficient number, since it is larger than the sum of its proper divisors (12203752779).

22203300021 is a wasteful number, since it uses less digits than its factorization.

22203300021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17920408.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 22203300021 its reverse (12000330222), we get a palindrome (34203630243).

The spelling of 22203300021 in words is "twenty-two billion, two hundred three million, three hundred thousand, twenty-one".