1100212221247 has 4 divisors (see below), whose sum is σ = 1100240030680. Its totient is φ = 1100184411816.

The previous prime is 1100212221193. The next prime is 1100212221257. The reversal of 1100212221247 is 7421222120011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100212221247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100212221257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13845288 + ... + 13924525.

It is an arithmetic number, because the mean of its divisors is an integer number (275060007670).

Almost surely, 2^{1100212221247} is an apocalyptic number.

1100212221247 is a deficient number, since it is larger than the sum of its proper divisors (27809433).

1100212221247 is an equidigital number, since it uses as much as digits as its factorization.

1100212221247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27809432.

The product of its (nonzero) digits is 896, while the sum is 25.

Adding to 1100212221247 its reverse (7421222120011), we get a palindrome (8521434341258).

The spelling of 1100212221247 in words is "one trillion, one hundred billion, two hundred twelve million, two hundred twenty-one thousand, two hundred forty-seven".