111011121212022 has 48 divisors (see below), whose sum is σ = 240664228401168. Its totient is φ = 36982150571520.

The previous prime is 111011121211943. The next prime is 111011121212059. The reversal of 111011121212022 is 220212121110111.

It is a happy number.

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 = 111011121211986 and 111011121212004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 636287533 + ... + 636461975.

It is an arithmetic number, because the mean of its divisors is an integer number (5013838091691).

Almost surely, 2^{111011121212022} is an apocalyptic number.

111011121212022 is an abundant number, since it is smaller than the sum of its proper divisors (129653107189146).

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

111011121212022 is a wasteful number, since it uses less digits than its factorization.

111011121212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194845 (or 194842 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111011121212022 its reverse (220212121110111), we get a palindrome (331223242322133).

The spelling of 111011121212022 in words is "one hundred eleven trillion, eleven billion, one hundred twenty-one million, two hundred twelve thousand, twenty-two".