22201300021 has 4 divisors (see below), whose sum is σ = 22202009632. Its totient is φ = 22200590412.

The previous prime is 22201300013. The next prime is 22201300061. The reversal of 22201300021 is 12000310222.

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 22201300021 - 2³ = 22201300013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22201299974 and 22201300010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201300061) 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, 305601 + ... + 371206.

It is an arithmetic number, because the mean of its divisors is an integer number (5550502408).

Almost surely, 2^22201300021 is an apocalyptic number.

It is an amenable number.

22201300021 is a deficient number, since it is larger than the sum of its proper divisors (709611).

22201300021 is an equidigital number, since it uses as much as digits as its factorization.

22201300021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709610.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 22201300021 its reverse (12000310222), we get a palindrome (34201610243).

The spelling of 22201300021 in words is "twenty-two billion, two hundred one million, three hundred thousand, twenty-one".