12100021112011 has 8 divisors (see below), whose sum is σ = 13828626975744. Its totient is φ = 10371423103080.

The previous prime is 12100021111931. The next prime is 12100021112071. The reversal of 12100021112011 is 11021112000121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12100021112011 - 2¹¹ = 12100021109963 is a prime.

It is a super-2 number, since 2×12100021112011² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12100021111982 and 12100021112000.

It is not an unprimeable number, because it can be changed into a prime (12100021112071) 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, 1824486 + ... + 5246788.

It is an arithmetic number, because the mean of its divisors is an integer number (1728578371968).

Almost surely, 2^{12100021112011} is an apocalyptic number.

12100021112011 is a deficient number, since it is larger than the sum of its proper divisors (1728605863733).

12100021112011 is an equidigital number, since it uses as much as digits as its factorization.

12100021112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3927401.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12100021112011 its reverse (11021112000121), we get a palindrome (23121133112132).

The spelling of 12100021112011 in words is "twelve trillion, one hundred billion, twenty-one million, one hundred twelve thousand, eleven".