220102180 has 24 divisors (see below), whose sum is σ = 482311872. Its totient is φ = 84212832.

The previous prime is 220102177. The next prime is 220102189. The reversal of 220102180 is 81201022.

It is not an unprimeable number, because it can be changed into a prime (220102189) 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, 238782 + ... + 239701.

It is an arithmetic number, because the mean of its divisors is an integer number (20096328).

Almost surely, 2^220102180 is an apocalyptic number.

220102180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220102180 is an abundant number, since it is smaller than the sum of its proper divisors (262209692).

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

220102180 is a wasteful number, since it uses less digits than its factorization.

220102180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478515 (or 478513 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 220102180 is about 14835.8410614296. The cubic root of 220102180 is about 603.7745200203.

It can be divided in two parts, 220 and 102180, that added together give a square (102400 = 320²).

The spelling of 220102180 in words is "two hundred twenty million, one hundred two thousand, one hundred eighty".