22023313220 has 24 divisors (see below), whose sum is σ = 46252647000. Its totient is φ = 8808622592.

The previous prime is 22023313217. The next prime is 22023313237. The reversal of 22023313220 is 2231332022.

It can be written as a sum of positive squares in 4 ways, for example, as 733001476 + 21290311744 = 27074^2 + 145912^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22023313192 and 22023313201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266636 + ... + 339324.

It is an arithmetic number, because the mean of its divisors is an integer number (1927193625).

Almost surely, 2^22023313220 is an apocalyptic number.

22023313220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22023313220 is an abundant number, since it is smaller than the sum of its proper divisors (24229333780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22023313220 is a wasteful number, since it uses less digits than its factorization.

22023313220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87847 (or 87845 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 22023313220 its reverse (2231332022), we get a palindrome (24254645242).

The spelling of 22023313220 in words is "twenty-two billion, twenty-three million, three hundred thirteen thousand, two hundred twenty".