1111221111122 has 16 divisors (see below), whose sum is σ = 1754805163200. Its totient is φ = 526294240560.

The previous prime is 1111221111097. The next prime is 1111221111151. The reversal of 1111221111122 is 2211111221111.

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1111221111122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1770329 + ... + 2314412.

It is an arithmetic number, because the mean of its divisors is an integer number (109675322700).

Almost surely, 2^{1111221111122} is an apocalyptic number.

1111221111122 is a deficient number, since it is larger than the sum of its proper divisors (643584052078).

1111221111122 is a wasteful number, since it uses less digits than its factorization.

1111221111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091921.

The product of its digits is 16, while the sum is 17.

Adding to 1111221111122 its reverse (2211111221111), we get a palindrome (3322332332233).

It can be divided in two parts, 1111 and 221111122, that multiplied together give a palindrome (245654456542).

The spelling of 1111221111122 in words is "one trillion, one hundred eleven billion, two hundred twenty-one million, one hundred eleven thousand, one hundred twenty-two".