1100112221122 has 4 divisors (see below), whose sum is σ = 1650168331686. Its totient is φ = 550056110560.

The previous prime is 1100112221119. The next prime is 1100112221137. The reversal of 1100112221122 is 2211222110011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 767864885841 + 332247335281 = 876279^2 + 576409^2 .

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 1100112221096 and 1100112221105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275028055279 + ... + 275028055282.

Almost surely, 2^{1100112221122} is an apocalyptic number.

1100112221122 is a deficient number, since it is larger than the sum of its proper divisors (550056110564).

1100112221122 is an equidigital number, since it uses as much as digits as its factorization.

1100112221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550056110563.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1100112221122 its reverse (2211222110011), we get a palindrome (3311334331133).

The spelling of 1100112221122 in words is "one trillion, one hundred billion, one hundred twelve million, two hundred twenty-one thousand, one hundred twenty-two".