1100221021012 has 12 divisors (see below), whose sum is σ = 1925581319956. Its totient is φ = 550054929600.

The previous prime is 1100221021001. The next prime is 1100221021093. The reversal of 1100221021012 is 2101201220011.

It can be written as a sum of positive squares in 2 ways, for example, as 921626880196 + 178594140816 = 960014^2 + 422604^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1100221020983 and 1100221021001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13850673 + ... + 13929880.

Almost surely, 2^{1100221021012} is an apocalyptic number.

It is an amenable number.

1100221021012 is a deficient number, since it is larger than the sum of its proper divisors (825360298944).

1100221021012 is a wasteful number, since it uses less digits than its factorization.

1100221021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27790458 (or 27790456 counting only the distinct ones).

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

Adding to 1100221021012 its reverse (2101201220011), we get a palindrome (3201422241023).

The spelling of 1100221021012 in words is "one trillion, one hundred billion, two hundred twenty-one million, twenty-one thousand, twelve".