221010020202222 has 128 divisors (see below), whose sum is σ = 503702250624000. Its totient is φ = 71803231913088.

The previous prime is 221010020202217. The next prime is 221010020202233. The reversal of 221010020202222 is 222202020010122.

221010020202222 is a `hidden beast` number, since 2 + 210 + 10 + 0 + 20 + 202 + 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 = 221010020202195 and 221010020202204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2052054529 + ... + 2052162227.

It is an arithmetic number, because the mean of its divisors is an integer number (3935173833000).

Almost surely, 2^{221010020202222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221010020202222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251851125312000).

221010020202222 is an abundant number, since it is smaller than the sum of its proper divisors (282692230421778).

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

221010020202222 is a wasteful number, since it uses less digits than its factorization.

221010020202222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112487 (or 112481 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 221010020202222 its reverse (222202020010122), we get a palindrome (443212040212344).

The spelling of 221010020202222 in words is "two hundred twenty-one trillion, ten billion, twenty million, two hundred two thousand, two hundred twenty-two".