201111112202122 has 16 divisors (see below), whose sum is σ = 302463468721152. Its totient is φ = 100289971863520.

The previous prime is 201111112202111. The next prime is 201111112202167. The reversal of 201111112202122 is 221202211111102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 201111112202122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21442653 + ... + 29359999.

It is an arithmetic number, because the mean of its divisors is an integer number (18903966795072).

Almost surely, 2^{201111112202122} is an apocalyptic number.

201111112202122 is a deficient number, since it is larger than the sum of its proper divisors (101352356519030).

201111112202122 is a wasteful number, since it uses less digits than its factorization.

201111112202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7950893.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 201111112202122 its reverse (221202211111102), we get a palindrome (422313323313224).

The spelling of 201111112202122 in words is "two hundred one trillion, one hundred eleven billion, one hundred twelve million, two hundred two thousand, one hundred twenty-two".