12001100110021 has 64 divisors (see below), whose sum is σ = 13573883473920. Its totient is φ = 10516137984000.

The previous prime is 12001100109931. The next prime is 12001100110031.

12001100110021 is nontrivially palindromic in base 10.

12001100110021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12001100110021 - 2¹⁷ = 12001099978949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001100110031) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8517458565 + ... + 8517459973.

It is an arithmetic number, because the mean of its divisors is an integer number (212091929280).

Almost surely, 2^{12001100110021} is an apocalyptic number.

12001100110021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12001100110021 is a deficient number, since it is larger than the sum of its proper divisors (1572783363899).

12001100110021 is a wasteful number, since it uses less digits than its factorization.

12001100110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266.

The product of its (nonzero) digits is 4, while the sum is 10.

It can be divided in two parts, 12001100 and 110021, that added together give a palindrome (12111121).

The spelling of 12001100110021 in words is "twelve trillion, one billion, one hundred million, one hundred ten thousand, twenty-one".