1100113212122 has 12 divisors (see below), whose sum is σ = 1658588952030. Its totient is φ = 547264401936.

The previous prime is 1100113212109. The next prime is 1100113212217. The reversal of 1100113212122 is 2212123110011.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 972414904321 + 127698307801 = 986111^2 + 357349^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1100113212122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7009097 + ... + 7164332.

Almost surely, 2^{1100113212122} is an apocalyptic number.

1100113212122 is a deficient number, since it is larger than the sum of its proper divisors (558475739908).

1100113212122 is an equidigital number, since it uses as much as digits as its factorization.

1100113212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14173825 (or 14173628 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1100113212122 its reverse (2212123110011), we get a palindrome (3312236322133).

The spelling of 1100113212122 in words is "one trillion, one hundred billion, one hundred thirteen million, two hundred twelve thousand, one hundred twenty-two".