111200201212122 has 48 divisors (see below), whose sum is σ = 262937582818560. Its totient is φ = 33684114825600.

The previous prime is 111200201212039. The next prime is 111200201212129. The reversal of 111200201212122 is 221212102002111.

111200201212122 is a `hidden beast` number, since 11 + 120 + 0 + 201 + 212 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111200201212095 and 111200201212104.

It is not an unprimeable number, because it can be changed into a prime (111200201212129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107114154 + ... + 108147317.

It is an arithmetic number, because the mean of its divisors is an integer number (5477866308720).

Almost surely, 2^{111200201212122} is an apocalyptic number.

111200201212122 is an abundant number, since it is smaller than the sum of its proper divisors (151737381606438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111200201212122 is a wasteful number, since it uses less digits than its factorization.

111200201212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215264099 (or 215264096 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111200201212122 its reverse (221212102002111), we get a palindrome (332412303214233).

The spelling of 111200201212122 in words is "one hundred eleven trillion, two hundred billion, two hundred one million, two hundred twelve thousand, one hundred twenty-two".