223021330020 has 96 divisors (see below), whose sum is σ = 693916272000. Its totient is φ = 59466172032.

The previous prime is 223021330013. The next prime is 223021330027. The reversal of 223021330020 is 20033120322.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (223021330013) and next prime (223021330027).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 223021329975 and 223021330002.

It is not an unprimeable number, because it can be changed into a prime (223021330027) 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, 7842267 + ... + 7870653.

It is an arithmetic number, because the mean of its divisors is an integer number (7228294500).

Almost surely, 2^223021330020 is an apocalyptic number.

223021330020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223021330020 is an abundant number, since it is smaller than the sum of its proper divisors (470894941980).

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

223021330020 is a wasteful number, since it uses less digits than its factorization.

223021330020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42954 (or 42946 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 223021330020 its reverse (20033120322), we get a palindrome (243054450342).

The spelling of 223021330020 in words is "two hundred twenty-three billion, twenty-one million, three hundred thirty thousand, twenty".