201122112121222 has 16 divisors (see below), whose sum is σ = 305159070783600. Its totient is φ = 99403060408960.

The previous prime is 201122112121207. The next prime is 201122112121241. The reversal of 201122112121222 is 222121211221102.

It is a junction number, because it is equal to n+sod(n) for n = 201122112121193 and 201122112121202.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 159005479 + ... + 160265362.

It is an arithmetic number, because the mean of its divisors is an integer number (19072441923975).

Almost surely, 2^{201122112121222} is an apocalyptic number.

201122112121222 is a deficient number, since it is larger than the sum of its proper divisors (104036958662378).

201122112121222 is a wasteful number, since it uses less digits than its factorization.

201122112121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319274471.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 201122112121222 its reverse (222121211221102), we get a palindrome (423243323342324).

The spelling of 201122112121222 in words is "two hundred one trillion, one hundred twenty-two billion, one hundred twelve million, one hundred twenty-one thousand, two hundred twenty-two".