100223220 has 48 divisors (see below), whose sum is σ = 281590848. Its totient is φ = 26634240.

The previous prime is 100223219. The next prime is 100223231. The reversal of 100223220 is 22322001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 100223196 and 100223205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15700 + ... + 21140.

It is an arithmetic number, because the mean of its divisors is an integer number (5866476).

Almost surely, 2^100223220 is an apocalyptic number.

100223220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100223220 is an abundant number, since it is smaller than the sum of its proper divisors (181367628).

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

100223220 is a wasteful number, since it uses less digits than its factorization.

100223220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5760 (or 5758 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 100223220 is about 10011.1547785458. The cubic root of 100223220 is about 464.5039918579.

Adding to 100223220 its reverse (22322001), we get a palindrome (122545221).

The spelling of 100223220 in words is "one hundred million, two hundred twenty-three thousand, two hundred twenty".