1121102112222 has 12 divisors (see below), whose sum is σ = 2429054576520. Its totient is φ = 373700704068.

The previous prime is 1121102112217. The next prime is 1121102112239. The reversal of 1121102112222 is 2222112011211.

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: 62283450679 = 1121102112222 / (1 + 1 + 2 + 1 + 1 + 0 + 2 + 1 + 1 + 2 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 1121102112195 and 1121102112204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31141725322 + ... + 31141725357.

It is an arithmetic number, because the mean of its divisors is an integer number (202421214710).

Almost surely, 2^{1121102112222} is an apocalyptic number.

1121102112222 is an abundant number, since it is smaller than the sum of its proper divisors (1307952464298).

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

1121102112222 is a wasteful number, since it uses less digits than its factorization.

1121102112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62283450687 (or 62283450684 counting only the distinct ones).

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

Adding to 1121102112222 its reverse (2222112011211), we get a palindrome (3343214123433).

The spelling of 1121102112222 in words is "one trillion, one hundred twenty-one billion, one hundred two million, one hundred twelve thousand, two hundred twenty-two".