201222211110 has 64 divisors (see below), whose sum is σ = 510905664000. Its totient is φ = 50579603712.

The previous prime is 201222211097. The next prime is 201222211111. The reversal of 201222211110 is 11112222102.

201222211110 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 201222211110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201222211111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 773559 + ... + 1000418.

It is an arithmetic number, because the mean of its divisors is an integer number (7982901000).

Almost surely, 2^201222211110 is an apocalyptic number.

201222211110 is an abundant number, since it is smaller than the sum of its proper divisors (309683452890).

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

201222211110 is a wasteful number, since it uses less digits than its factorization.

201222211110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774205.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201222211110 its reverse (11112222102), we get a palindrome (212334433212).

The spelling of 201222211110 in words is "two hundred one billion, two hundred twenty-two million, two hundred eleven thousand, one hundred ten".