111212000212122 has 96 divisors (see below), whose sum is σ = 243426416762880. Its totient is φ = 36692754151680.

The previous prime is 111212000212067. The next prime is 111212000212163. The reversal of 111212000212122 is 221212000212111.

111212000212122 is a `hidden beast` number, since 11 + 121 + 200 + 0 + 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 = 111212000212095 and 111212000212104.

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 47 ways as a sum of consecutive naturals, for example, 3429383404 + ... + 3429415832.

It is an arithmetic number, because the mean of its divisors is an integer number (2535691841280).

Almost surely, 2^{111212000212122} is an apocalyptic number.

111212000212122 is an abundant number, since it is smaller than the sum of its proper divisors (132214416550758).

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

111212000212122 is a wasteful number, since it uses less digits than its factorization.

111212000212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36588 (or 36585 counting only the distinct ones).

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

Adding to 111212000212122 its reverse (221212000212111), we get a palindrome (332424000424233).

The spelling of 111212000212122 in words is "one hundred eleven trillion, two hundred twelve billion, two hundred twelve thousand, one hundred twenty-two".