103221180 has 36 divisors (see below), whose sum is σ = 313104792. Its totient is φ = 27525600.

The previous prime is 103221169. The next prime is 103221193. The reversal of 103221180 is 81122301.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×103221180² = 21309224001184800, 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 11 ways as a sum of consecutive naturals, for example, 286546 + ... + 286905.

Almost surely, 2^103221180 is an apocalyptic number.

103221180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103221180 is an abundant number, since it is smaller than the sum of its proper divisors (209883612).

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

103221180 is a wasteful number, since it uses less digits than its factorization.

103221180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573466 (or 573461 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 103221180 is about 10159.7824779864. The cubic root of 103221180 is about 469.0901062395.

Adding to 103221180 its reverse (81122301), we get a palindrome (184343481).

The spelling of 103221180 in words is "one hundred three million, two hundred twenty-one thousand, one hundred eighty".