11001100012121 has 8 divisors (see below), whose sum is σ = 11217270208320. Its totient is φ = 10785248418672.

The previous prime is 11001100012081. The next prime is 11001100012127. The reversal of 11001100012121 is 12121000110011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11001100012121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11001100012127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79580951 + ... + 79719068.

It is an arithmetic number, because the mean of its divisors is an integer number (1402158776040).

Almost surely, 2^{11001100012121} is an apocalyptic number.

It is an amenable number.

11001100012121 is a deficient number, since it is larger than the sum of its proper divisors (216170196199).

11001100012121 is a wasteful number, since it uses less digits than its factorization.

11001100012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159301375.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11001100012121 its reverse (12121000110011), we get a palindrome (23122100122132).

The spelling of 11001100012121 in words is "eleven trillion, one billion, one hundred million, twelve thousand, one hundred twenty-one".