223020100 has 72 divisors (see below), whose sum is σ = 514654560. Its totient is φ = 83646720.

The previous prime is 223020097. The next prime is 223020143. The reversal of 223020100 is 1020322.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202752 + ... + 203848.

It is an arithmetic number, because the mean of its divisors is an integer number (7147980).

Almost surely, 2^223020100 is an apocalyptic number.

223020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223020100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257327280).

223020100 is an abundant number, since it is smaller than the sum of its proper divisors (291634460).

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

223020100 is a wasteful number, since it uses less digits than its factorization.

223020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237 (or 1230 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 223020100 is about 14933.8575056815. The cubic root of 223020100 is about 606.4309184777.

Adding to 223020100 its reverse (1020322), we get a palindrome (224040422).

The spelling of 223020100 in words is "two hundred twenty-three million, twenty thousand, one hundred".