111222010111122 has 12 divisors (see below), whose sum is σ = 240981021907470. Its totient is φ = 37074003370368.

The previous prime is 111222010111049. The next prime is 111222010111129. The reversal of 111222010111122 is 221111010222111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 110615261029641 + 606749081481 = 10517379^2 + 778941^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6179000561729 = 111222010111122 / (1 + 1 + 1 + 2 + 2 + 2 + 0 + 1 + 0 + 1 + 1 + 1 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 111222010111095 and 111222010111104.

It is not an unprimeable number, because it can be changed into a prime (111222010111129) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 3089500280847 + ... + 3089500280882.

Almost surely, 2^{111222010111122} is an apocalyptic number.

111222010111122 is an abundant number, since it is smaller than the sum of its proper divisors (129759011796348).

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

111222010111122 is a wasteful number, since it uses less digits than its factorization.

111222010111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6179000561737 (or 6179000561734 counting only the distinct ones).

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

Adding to 111222010111122 its reverse (221111010222111), we get a palindrome (332333020333233).

The spelling of 111222010111122 in words is "one hundred eleven trillion, two hundred twenty-two billion, ten million, one hundred eleven thousand, one hundred twenty-two".