220101210 has 96 divisors (see below), whose sum is σ = 692520192. Its totient is φ = 47347200.

The previous prime is 220101181. The next prime is 220101221. The reversal of 220101210 is 12101022.

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

It is a junction number, because it is equal to n+sod(n) for n = 220101192 and 220101201.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 435 + ... + 20985.

It is an arithmetic number, because the mean of its divisors is an integer number (7213752).

Almost surely, 2^220101210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220101210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346260096).

220101210 is an abundant number, since it is smaller than the sum of its proper divisors (472418982).

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

220101210 is a wasteful number, since it uses less digits than its factorization.

220101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20588 (or 20585 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 220101210 is about 14835.8083702911. The cubic root of 220101210 is about 603.7736330654.

Adding to 220101210 its reverse (12101022), we get a palindrome (232202232).

It can be divided in two parts, 2201012 and 10, that added together give a palindrome (2201022).

The spelling of 220101210 in words is "two hundred twenty million, one hundred one thousand, two hundred ten".