12100211231011 has 4 divisors (see below), whose sum is σ = 12120824879352. Its totient is φ = 12079597582672.

The previous prime is 12100211230967. The next prime is 12100211231023. The reversal of 12100211231011 is 11013211200121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12100211231011 - 2⁷ = 12100211230883 is a prime.

It is a super-2 number, since 2×12100211231011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12100211231051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10306823290 + ... + 10306824463.

It is an arithmetic number, because the mean of its divisors is an integer number (3030206219838).

Almost surely, 2^{12100211231011} is an apocalyptic number.

12100211231011 is a deficient number, since it is larger than the sum of its proper divisors (20613648341).

12100211231011 is an equidigital number, since it uses as much as digits as its factorization.

12100211231011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20613648340.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 12100211231011 its reverse (11013211200121), we get a palindrome (23113422431132).

The spelling of 12100211231011 in words is "twelve trillion, one hundred billion, two hundred eleven million, two hundred thirty-one thousand, eleven".