22363330021 has 4 divisors (see below), whose sum is σ = 22364121600. Its totient is φ = 22362538444.

The previous prime is 22363329991. The next prime is 22363330037. The reversal of 22363330021 is 12003336322.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12003336322 = 2 ⋅6001668161.

It is a cyclic number.

It is not a de Polignac number, because 22363330021 - 2¹³ = 22363321829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22363330061) 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, 351781 + ... + 410458.

It is an arithmetic number, because the mean of its divisors is an integer number (5591030400).

Almost surely, 2^22363330021 is an apocalyptic number.

It is an amenable number.

22363330021 is a deficient number, since it is larger than the sum of its proper divisors (791579).

22363330021 is an equidigital number, since it uses as much as digits as its factorization.

22363330021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791578.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 22363330021 its reverse (12003336322), we get a palindrome (34366666343).

The spelling of 22363330021 in words is "twenty-two billion, three hundred sixty-three million, three hundred thirty thousand, twenty-one".