22233322021 has 4 divisors (see below), whose sum is σ = 22235811552. Its totient is φ = 22230832492.

The previous prime is 22233321989. The next prime is 22233322031. The reversal of 22233322021 is 12022333222.

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 22233322021 - 2⁵ = 22233321989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22233321983 and 22233322001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22233322031) 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, 1231321 + ... + 1249246.

It is an arithmetic number, because the mean of its divisors is an integer number (5558952888).

Almost surely, 2^22233322021 is an apocalyptic number.

It is an amenable number.

22233322021 is a deficient number, since it is larger than the sum of its proper divisors (2489531).

22233322021 is an equidigital number, since it uses as much as digits as its factorization.

22233322021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489530.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 22233322021 its reverse (12022333222), we get a palindrome (34255655243).

The spelling of 22233322021 in words is "twenty-two billion, two hundred thirty-three million, three hundred twenty-two thousand, twenty-one".