12100220011 has 8 divisors (see below), whose sum is σ = 13201089264. Its totient is φ = 10999492320.

The previous prime is 12100219981. The next prime is 12100220017. The reversal of 12100220011 is 11002200121.

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 12100220011 - 2⁹ = 12100219499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12100220011.

It is not an unprimeable number, because it can be changed into a prime (12100220017) 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, 229725 + ... + 277441.

It is an arithmetic number, because the mean of its divisors is an integer number (1650136158).

Almost surely, 2^12100220011 is an apocalyptic number.

12100220011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12100220011 is a deficient number, since it is larger than the sum of its proper divisors (1100869253).

12100220011 is a wasteful number, since it uses less digits than its factorization.

12100220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70781.

The product of its (nonzero) digits is 8, while the sum is 10.

Subtracting from 12100220011 its sum of digits (10), we obtain a square (12100220001 = 110001²).

Adding to 12100220011 its reverse (11002200121), we get a palindrome (23102420132).

It can be divided in two parts, 1 and 2100220011, that added together give a palindrome (2100220012).

The spelling of 12100220011 in words is "twelve billion, one hundred million, two hundred twenty thousand, eleven".