103220208 has 120 divisors (see below), whose sum is σ = 355581408. Its totient is φ = 27219456.

The previous prime is 103220191. The next prime is 103220219. The reversal of 103220208 is 802022301.

It is a happy number.

It is a super-2 number, since 2×103220208² = 21308822679126528, which contains 22 as substring.

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

It is a congruent number.

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, 9166 + ... + 17042.

Almost surely, 2^103220208 is an apocalyptic number.

103220208 is a gapful number since it is divisible by the number (18) 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 103220208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177790704).

103220208 is an abundant number, since it is smaller than the sum of its proper divisors (252361200).

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

103220208 is a wasteful number, since it uses less digits than its factorization.

103220208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7911 (or 7902 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 103220208 is about 10159.7346422040. The cubic root of 103220208 is about 469.0886338123.

Adding to 103220208 its reverse (802022301), we get a palindrome (905242509).

The spelling of 103220208 in words is "one hundred three million, two hundred twenty thousand, two hundred eight".