10221180 has 24 divisors (see below), whose sum is σ = 28619472. Its totient is φ = 2725632.

The previous prime is 10221179. The next prime is 10221187. The reversal of 10221180 is 8112201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85117 + ... + 85236.

It is an arithmetic number, because the mean of its divisors is an integer number (1192478).

Almost surely, 2^10221180 is an apocalyptic number.

10221180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221180 is an abundant number, since it is smaller than the sum of its proper divisors (18398292).

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

10221180 is a wasteful number, since it uses less digits than its factorization.

10221180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170365 (or 170363 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 10221180 is about 3197.0580226202. The cubic root of 10221180 is about 217.0202930048.

Adding to 10221180 its reverse (8112201), we get a palindrome (18333381).

It can be divided in two parts, 10221 and 180, that added together give a palindrome (10401).

The spelling of 10221180 in words is "ten million, two hundred twenty-one thousand, one hundred eighty".