22022231021 has 8 divisors (see below), whose sum is σ = 25848487680. Its totient is φ = 18366030288.

The previous prime is 22022230961. The next prime is 22022231047. The reversal of 22022231021 is 12013222022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22022231021 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 (22022231051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42513701 + ... + 42514218.

It is an arithmetic number, because the mean of its divisors is an integer number (3231060960).

Almost surely, 2^22022231021 is an apocalyptic number.

It is an amenable number.

22022231021 is a deficient number, since it is larger than the sum of its proper divisors (3826256659).

22022231021 is an equidigital number, since it uses as much as digits as its factorization.

22022231021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85027963.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22022231021 its reverse (12013222022), we get a palindrome (34035453043).

The spelling of 22022231021 in words is "twenty-two billion, twenty-two million, two hundred thirty-one thousand, twenty-one".