100000220 has 12 divisors (see below), whose sum is σ = 210000504. Its totient is φ = 40000080.

The previous prime is 100000217. The next prime is 100000223. The reversal of 100000220 is 22000001.

It is an interprime number because it is at equal distance from previous prime (100000217) and next prime (100000223).

It is a Harshad number since it is a multiple of its sum of digits (5).

100000220 is a modest number, since divided by 220 gives 100 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100000223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2499986 + ... + 2500025.

It is an arithmetic number, because the mean of its divisors is an integer number (17500042).

Almost surely, 2^100000220 is an apocalyptic number.

100000220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100000220 is an abundant number, since it is smaller than the sum of its proper divisors (110000284).

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

100000220 is a wasteful number, since it uses less digits than its factorization.

100000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5000020 (or 5000018 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 5.

The square root of 100000220 is about 10000.0109999940. The cubic root of 100000220 is about 464.1592237442.

Adding to 100000220 its reverse (22000001), we get a palindrome (122000221).

The spelling of 100000220 in words is "one hundred million, two hundred twenty", and thus it is an aban number.