1112221012122 has 48 divisors (see below), whose sum is σ = 2633912824608. Its totient is φ = 336392209440.

The previous prime is 1112221012109. The next prime is 1112221012127. The reversal of 1112221012122 is 2212101222111.

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 = 1112221012095 and 1112221012104.

It is not an unprimeable number, because it can be changed into a prime (1112221012127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5266693 + ... + 5473800.

It is an arithmetic number, because the mean of its divisors is an integer number (54873183846).

Almost surely, 2^{1112221012122} is an apocalyptic number.

1112221012122 is an abundant number, since it is smaller than the sum of its proper divisors (1521691812486).

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

1112221012122 is a wasteful number, since it uses less digits than its factorization.

1112221012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10741035 (or 10741032 counting only the distinct ones).

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

Adding to 1112221012122 its reverse (2212101222111), we get a palindrome (3324322234233).

The spelling of 1112221012122 in words is "one trillion, one hundred twelve billion, two hundred twenty-one million, twelve thousand, one hundred twenty-two".