1100220012112 has 40 divisors (see below), whose sum is σ = 2321445246120. Its totient is φ = 502088294400.

The previous prime is 1100220012079. The next prime is 1100220012121. The reversal of 1100220012112 is 2112100220011.

It can be written as a sum of positive squares in 4 ways, for example, as 61565519376 + 1038654492736 = 248124^2 + 1019144^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1100220012092 and 1100220012101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29697889 + ... + 29734912.

It is an arithmetic number, because the mean of its divisors is an integer number (58036131153).

Almost surely, 2^{1100220012112} is an apocalyptic number.

It is an amenable number.

1100220012112 is an abundant number, since it is smaller than the sum of its proper divisors (1221225234008).

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

1100220012112 is a wasteful number, since it uses less digits than its factorization.

1100220012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59432911 (or 59432905 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1100220012112 its reverse (2112100220011), we get a palindrome (3212320232123).

The spelling of 1100220012112 in words is "one trillion, one hundred billion, two hundred twenty million, twelve thousand, one hundred twelve".