22021310223 has 24 divisors (see below), whose sum is σ = 34796960640. Its totient is φ = 13309050960.

The previous prime is 22021310219. The next prime is 22021310237. The reversal of 22021310223 is 32201312022.

22021310223 is a `hidden beast` number, since 220 + 213 + 10 + 223 = 666.

It is not a de Polignac number, because 22021310223 - 2² = 22021310219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22021310196 and 22021310205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021310203) 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, 274261 + ... + 345342.

It is an arithmetic number, because the mean of its divisors is an integer number (1449873360).

Almost surely, 2^22021310223 is an apocalyptic number.

22021310223 is a deficient number, since it is larger than the sum of its proper divisors (12775650417).

22021310223 is a wasteful number, since it uses less digits than its factorization.

22021310223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619979 (or 619976 counting only the distinct ones).

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

Adding to 22021310223 its reverse (32201312022), we get a palindrome (54222622245).

The spelling of 22021310223 in words is "twenty-two billion, twenty-one million, three hundred ten thousand, two hundred twenty-three".