100223120 has 40 divisors (see below), whose sum is σ = 235300416. Its totient is φ = 39696768.

The previous prime is 100223099. The next prime is 100223131. The reversal of 100223120 is 21322001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2159 + ... + 14321.

Almost surely, 2^100223120 is an apocalyptic number.

100223120 is a gapful number since it is divisible by the number (10) 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 100223120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117650208).

100223120 is an abundant number, since it is smaller than the sum of its proper divisors (135077296).

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

100223120 is a wasteful number, since it uses less digits than its factorization.

100223120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12279 (or 12273 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 100223120 is about 10011.1497841157. The cubic root of 100223120 is about 464.5038373681.

Adding to 100223120 its reverse (21322001), we get a palindrome (121545121).

The spelling of 100223120 in words is "one hundred million, two hundred twenty-three thousand, one hundred twenty".