220111221021210 has 128 divisors (see below), whose sum is σ = 599346949743360. Its totient is φ = 57469694358528.

The previous prime is 220111221021203. The next prime is 220111221021221. The reversal of 220111221021210 is 12120122111022.

220111221021210 is a `hidden beast` number, since 2 + 201 + 11 + 221 + 0 + 21 + 210 = 666.

It is a super-3 number, since 3×220111221021210³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38056992 + ... + 43457531.

It is an arithmetic number, because the mean of its divisors is an integer number (4682398044870).

Almost surely, 2^{220111221021210} is an apocalyptic number.

220111221021210 is an abundant number, since it is smaller than the sum of its proper divisors (379235728722150).

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

220111221021210 is a wasteful number, since it uses less digits than its factorization.

220111221021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81514749 (or 81514743 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 220111221021210 its reverse (12120122111022), we get a palindrome (232231343132232).

The spelling of 220111221021210 in words is "two hundred twenty trillion, one hundred eleven billion, two hundred twenty-one million, twenty-one thousand, two hundred ten".