201111121212222 has 32 divisors (see below), whose sum is σ = 433993820793120. Its totient is φ = 61761572720640.

The previous prime is 201111121212181. The next prime is 201111121212247. The reversal of 201111121212222 is 222212121111102.

201111121212222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2474381347 + ... + 2474462622.

It is an arithmetic number, because the mean of its divisors is an integer number (13562306899785).

Almost surely, 2^{201111121212222} is an apocalyptic number.

201111121212222 is an abundant number, since it is smaller than the sum of its proper divisors (232882699580898).

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

201111121212222 is a wasteful number, since it uses less digits than its factorization.

201111121212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4948844508.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 201111121212222 its reverse (222212121111102), we get a palindrome (423323242323324).

The spelling of 201111121212222 in words is "two hundred one trillion, one hundred eleven billion, one hundred twenty-one million, two hundred twelve thousand, two hundred twenty-two".