22303210021 has 4 divisors (see below), whose sum is σ = 23477063200. Its totient is φ = 21129356844.

The previous prime is 22303209949. The next prime is 22303210051. The reversal of 22303210021 is 12001230322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22303210021 - 2¹⁷ = 22303078949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22303209977 and 22303210004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22303210051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586926561 + ... + 586926598.

It is an arithmetic number, because the mean of its divisors is an integer number (5869265800).

Almost surely, 2^22303210021 is an apocalyptic number.

It is an amenable number.

22303210021 is a deficient number, since it is larger than the sum of its proper divisors (1173853179).

22303210021 is a wasteful number, since it uses less digits than its factorization.

22303210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173853178.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22303210021 its reverse (12001230322), we get a palindrome (34304440343).

It can be divided in two parts, 22303 and 210021, that added together give a square (232324 = 482²).

The spelling of 22303210021 in words is "twenty-two billion, three hundred three million, two hundred ten thousand, twenty-one".