1100012002221 has 16 divisors (see below), whose sum is σ = 1600141547520. Its totient is φ = 666622236720.

The previous prime is 1100012002217. The next prime is 1100012002381. The reversal of 1100012002221 is 1222002100011.

It is not a de Polignac number, because 1100012002221 - 2² = 1100012002217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100012002197 and 1100012002206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100012002421) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 858475 + ... + 1713768.

It is an arithmetic number, because the mean of its divisors is an integer number (100008846720).

Almost surely, 2^{1100012002221} is an apocalyptic number.

1100012002221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1100012002221 is a deficient number, since it is larger than the sum of its proper divisors (500129545299).

1100012002221 is a wasteful number, since it uses less digits than its factorization.

1100012002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2585216.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1100012002221 its reverse (1222002100011), we get a palindrome (2322014102232).

The spelling of 1100012002221 in words is "one trillion, one hundred billion, twelve million, two thousand, two hundred twenty-one".