12111010222101 has 16 divisors (see below), whose sum is σ = 18457812998784. Its totient is φ = 6919474665024.

The previous prime is 12111010222063. The next prime is 12111010222111. The reversal of 12111010222101 is 10122201011121.

It is a happy number.

It is not a de Polignac number, because 12111010222101 - 2¹¹ = 12111010220053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111010222111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45806910 + ... + 46070543.

It is an arithmetic number, because the mean of its divisors is an integer number (1153613312424).

Almost surely, 2^{12111010222101} is an apocalyptic number.

It is an amenable number.

12111010222101 is a deficient number, since it is larger than the sum of its proper divisors (6346802776683).

12111010222101 is an equidigital number, since it uses as much as digits as its factorization.

12111010222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91883740.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12111010222101 its reverse (10122201011121), we get a palindrome (22233211233222).

The spelling of 12111010222101 in words is "twelve trillion, one hundred eleven billion, ten million, two hundred twenty-two thousand, one hundred one".