221002110201222 has 128 divisors (see below), whose sum is σ = 570643700889600. Its totient is φ = 62094076329600.

The previous prime is 221002110201203. The next prime is 221002110201259. The reversal of 221002110201222 is 222102011200122.

It is a happy number.

221002110201222 is a `hidden beast` number, since 2 + 210 + 0 + 21 + 10 + 201 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 221002110201195 and 221002110201204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 144429 + ... + 21024392.

It is an arithmetic number, because the mean of its divisors is an integer number (4458153913200).

Almost surely, 2^{221002110201222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221002110201222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285321850444800).

221002110201222 is an abundant number, since it is smaller than the sum of its proper divisors (349641590688378).

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

221002110201222 is a wasteful number, since it uses less digits than its factorization.

221002110201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21169299 (or 21169293 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 221002110201222 its reverse (222102011200122), we get a palindrome (443104121401344).

The spelling of 221002110201222 in words is "two hundred twenty-one trillion, two billion, one hundred ten million, two hundred one thousand, two hundred twenty-two".