1112221222222 has 16 divisors (see below), whose sum is σ = 1821823874352. Its totient is φ = 505048014720.

The previous prime is 1112221222103. The next prime is 1112221222237. The reversal of 1112221222222 is 2222221222111.

It is a Harshad number since it is a multiple of its sum of digits (22).

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

It is a junction number, because it is equal to n+sod(n) for n = 1112221222193 and 1112221222202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25331883 + ... + 25375750.

It is an arithmetic number, because the mean of its divisors is an integer number (113863992147).

Almost surely, 2^{1112221222222} is an apocalyptic number.

1112221222222 is a deficient number, since it is larger than the sum of its proper divisors (709602652130).

1112221222222 is a wasteful number, since it uses less digits than its factorization.

1112221222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50708643.

The product of its digits is 512, while the sum is 22.

Adding to 1112221222222 its reverse (2222221222111), we get a palindrome (3334442444333).

The spelling of 1112221222222 in words is "one trillion, one hundred twelve billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred twenty-two".