22022202321 has 24 divisors (see below), whose sum is σ = 37700563264. Its totient is φ = 12584114640.

The previous prime is 22022202317. The next prime is 22022202331. The reversal of 22022202321 is 12320222022.

It is not a de Polignac number, because 22022202321 - 2² = 22022202317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22022202294 and 22022202303.

It is not an unprimeable number, because it can be changed into a prime (22022202331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6471610 + ... + 6475011.

Almost surely, 2^22022202321 is an apocalyptic number.

22022202321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22022202321 is a deficient number, since it is larger than the sum of its proper divisors (15678360943).

22022202321 is an equidigital number, since it uses as much as digits as its factorization.

22022202321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12946643 (or 12946631 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22022202321 its reverse (12320222022), we get a palindrome (34342424343).

The spelling of 22022202321 in words is "twenty-two billion, twenty-two million, two hundred two thousand, three hundred twenty-one".