201111121221122 has 32 divisors (see below), whose sum is σ = 355980221743104. Its totient is φ = 83387420413200.

The previous prime is 201111121221089. The next prime is 201111121221169. The reversal of 201111121221122 is 221122121111102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201111121221094 and 201111121221103.

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 15 ways as a sum of consecutive naturals, for example, 61521698 + ... + 64708125.

It is an arithmetic number, because the mean of its divisors is an integer number (11124381929472).

Almost surely, 2^{201111121221122} is an apocalyptic number.

201111121221122 is a deficient number, since it is larger than the sum of its proper divisors (154869100521982).

201111121221122 is a wasteful number, since it uses less digits than its factorization.

201111121221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126233534.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 201111121221122 its reverse (221122121111102), we get a palindrome (422233242332224).

The spelling of 201111121221122 in words is "two hundred one trillion, one hundred eleven billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty-two".