12001100121011 has 8 divisors (see below), whose sum is σ = 12006803128320. Its totient is φ = 11995397432392.

The previous prime is 12001100121001. The next prime is 12001100121013. The reversal of 12001100121011 is 11012100110021.

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-12001100121011 is a prime.

It is a super-2 number, since 2×12001100121011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12001100120983 and 12001100121001.

It is not an unprimeable number, because it can be changed into a prime (12001100121013) 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, 111914726 + ... + 112021908.

It is an arithmetic number, because the mean of its divisors is an integer number (1500850391040).

Almost surely, 2^{12001100121011} is an apocalyptic number.

12001100121011 is a deficient number, since it is larger than the sum of its proper divisors (5703007309).

12001100121011 is a wasteful number, since it uses less digits than its factorization.

12001100121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159345.

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

Adding to 12001100121011 its reverse (11012100110021), we get a palindrome (23013200231032).

The spelling of 12001100121011 in words is "twelve trillion, one billion, one hundred million, one hundred twenty-one thousand, eleven".