23223321220 has 48 divisors (see below), whose sum is σ = 55037102400. Its totient is φ = 8153640320.

The previous prime is 23223321217. The next prime is 23223321227. The reversal of 23223321220 is 2212332232.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 23223321191 and 23223321200.

It is not an unprimeable number, because it can be changed into a prime (23223321227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1813630 + ... + 1826389.

It is an arithmetic number, because the mean of its divisors is an integer number (1146606300).

Almost surely, 2^23223321220 is an apocalyptic number.

23223321220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23223321220 is an abundant number, since it is smaller than the sum of its proper divisors (31813781180).

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

23223321220 is a wasteful number, since it uses less digits than its factorization.

23223321220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3640068 (or 3640066 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 23223321220 its reverse (2212332232), we get a palindrome (25435653452).

It can be divided in two parts, 23223 and 321220, that added together give a palindrome (344443).

The spelling of 23223321220 in words is "twenty-three billion, two hundred twenty-three million, three hundred twenty-one thousand, two hundred twenty".