220102200 has 72 divisors (see below), whose sum is σ = 739182600. Its totient is φ = 58693440.

The previous prime is 220102189. The next prime is 220102231. The reversal of 220102200 is 2201022.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 59340 + ... + 62939.

It is an arithmetic number, because the mean of its divisors is an integer number (10266425).

Almost surely, 2^220102200 is an apocalyptic number.

220102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220102200 is an abundant number, since it is smaller than the sum of its proper divisors (519080400).

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

220102200 is a wasteful number, since it uses less digits than its factorization.

220102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122301 (or 122289 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 220102200 is about 14835.8417354729. The cubic root of 220102200 is about 603.7745383080.

Adding to 220102200 its reverse (2201022), we get a palindrome (222303222).

Multiplying 220102200 by its reverse (2201022), we get a square (484449784448400 = 22010220²).

220102200 divided by its reverse (2201022) gives a square (100 = 10²).

The spelling of 220102200 in words is "two hundred twenty million, one hundred two thousand, two hundred".