12100022211 has 4 divisors (see below), whose sum is σ = 16133362952. Its totient is φ = 8066681472.

The previous prime is 12100022203. The next prime is 12100022243. The reversal of 12100022211 is 11222000121.

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

It is not a de Polignac number, because 12100022211 - 2³ = 12100022203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12100022251) 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, 2016670366 + ... + 2016670371.

It is an arithmetic number, because the mean of its divisors is an integer number (4033340738).

Almost surely, 2^12100022211 is an apocalyptic number.

12100022211 is a deficient number, since it is larger than the sum of its proper divisors (4033340741).

12100022211 is an equidigital number, since it uses as much as digits as its factorization.

12100022211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4033340740.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12100022211 its reverse (11222000121), we get a palindrome (23322022332).

The spelling of 12100022211 in words is "twelve billion, one hundred million, twenty-two thousand, two hundred eleven".