201222210010220 has 192 divisors, whose sum is σ = 489949358653440. Its totient is φ = 67993457799168.

The previous prime is 201222210010207. The next prime is 201222210010273. The reversal of 201222210010220 is 22010012222102.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7907489537 + ... + 7907514983.

It is an arithmetic number, because the mean of its divisors is an integer number (2551819576320).

Almost surely, 2^{201222210010220} is an apocalyptic number.

201222210010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201222210010220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244974679326720).

201222210010220 is an abundant number, since it is smaller than the sum of its proper divisors (288727148643220).

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

201222210010220 is a wasteful number, since it uses less digits than its factorization.

201222210010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27592 (or 27590 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 201222210010220 its reverse (22010012222102), we get a palindrome (223232222232322).

The spelling of 201222210010220 in words is "two hundred one trillion, two hundred twenty-two billion, two hundred ten million, ten thousand, two hundred twenty".