201222122222010 has 128 divisors (see below), whose sum is σ = 512257798232064. Its totient is φ = 50497888250880.

The previous prime is 201222122221963. The next prime is 201222122222071. The reversal of 201222122222010 is 10222221222102.

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, 63029824 + ... + 66145316.

It is an arithmetic number, because the mean of its divisors is an integer number (4002014048688).

Almost surely, 2^{201222122222010} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201222122222010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256128899116032).

201222122222010 is an abundant number, since it is smaller than the sum of its proper divisors (311035676010054).

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

201222122222010 is a wasteful number, since it uses less digits than its factorization.

201222122222010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117448.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 201222122222010 its reverse (10222221222102), we get a palindrome (211444343444112).

The spelling of 201222122222010 in words is "two hundred one trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred twenty-two thousand, ten".