22001321223 has 32 divisors (see below), whose sum is σ = 37722470400. Its totient is φ = 12413033568.

The previous prime is 22001321213. The next prime is 22001321233. The reversal of 22001321223 is 32212310022.

It is an interprime number because it is at equal distance from previous prime (22001321213) and next prime (22001321233).

It is not a de Polignac number, because 22001321223 - 2¹⁴ = 22001304839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22001321196 and 22001321205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001321213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 721836 + ... + 751697.

It is an arithmetic number, because the mean of its divisors is an integer number (1178827200).

Almost surely, 2^22001321223 is an apocalyptic number.

22001321223 is a deficient number, since it is larger than the sum of its proper divisors (15721149177).

22001321223 is a wasteful number, since it uses less digits than its factorization.

22001321223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473628 (or 1473622 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22001321223 its reverse (32212310022), we get a palindrome (54213631245).

The spelling of 22001321223 in words is "twenty-two billion, one million, three hundred twenty-one thousand, two hundred twenty-three".