201111002112122 has 16 divisors (see below), whose sum is σ = 303212781852552. Its totient is φ = 100040125254720.

The previous prime is 201111002112101. The next prime is 201111002112127. The reversal of 201111002112122 is 221211200111102.

It can be written as a sum of positive squares in 4 ways, for example, as 154724019093721 + 46386983018401 = 12438811^2 + 6810799^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 201111002112122.

It is not an unprimeable number, because it can be changed into a prime (201111002112127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4613633 + ... + 20579300.

Almost surely, 2^{201111002112122} is an apocalyptic number.

201111002112122 is a deficient number, since it is larger than the sum of its proper divisors (102101779740430).

201111002112122 is a wasteful number, since it uses less digits than its factorization.

201111002112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25213393.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 201111002112122 its reverse (221211200111102), we get a palindrome (422322202223224).

The spelling of 201111002112122 in words is "two hundred one trillion, one hundred eleven billion, two million, one hundred twelve thousand, one hundred twenty-two".