201111022222 has 32 divisors (see below), whose sum is σ = 329794882560. Its totient is φ = 91218697920.

The previous prime is 201111022213. The next prime is 201111022237. The reversal of 201111022222 is 222220111102.

It is a happy number.

201111022222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 201111022196 and 201111022205.

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, 31065978 + ... + 31072450.

It is an arithmetic number, because the mean of its divisors is an integer number (10306090080).

Almost surely, 2^201111022222 is an apocalyptic number.

201111022222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201111022222 is a deficient number, since it is larger than the sum of its proper divisors (128683860338).

201111022222 is a wasteful number, since it uses less digits than its factorization.

201111022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9288.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201111022222 its reverse (222220111102), we get a palindrome (423331133324).

It can be divided in two parts, 20111102 and 2222, that multiplied together give a palindrome (44686868644).

The spelling of 201111022222 in words is "two hundred one billion, one hundred eleven million, twenty-two thousand, two hundred twenty-two".