12101102011 has 4 divisors (see below), whose sum is σ = 12382523032. Its totient is φ = 11819680992.

The previous prime is 12101102009. The next prime is 12101102089. The reversal of 12101102011 is 11020110121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11020110121 = 17209 ⋅640369.

It is a cyclic number.

It is not a de Polignac number, because 12101102011 - 2¹ = 12101102009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12101102711) 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, 140710446 + ... + 140710531.

It is an arithmetic number, because the mean of its divisors is an integer number (3095630758).

Almost surely, 2^12101102011 is an apocalyptic number.

12101102011 is a deficient number, since it is larger than the sum of its proper divisors (281421021).

12101102011 is an equidigital number, since it uses as much as digits as its factorization.

12101102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281421020.

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

Adding to 12101102011 its reverse (11020110121), we get a palindrome (23121212132).

It can be divided in two parts, 1210110 and 2011, that added together give a palindrome (1212121).

The spelling of 12101102011 in words is "twelve billion, one hundred one million, one hundred two thousand, eleven".