12111210202101 has 16 divisors (see below), whose sum is σ = 16219895490624. Its totient is φ = 8038380432384.

The previous prime is 12111210202019. The next prime is 12111210202111. The reversal of 12111210202101 is 10120201211121.

It is a happy number.

It is not a de Polignac number, because 12111210202101 - 2²⁶ = 12111143093237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111210202111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4976455 + ... + 6999108.

It is an arithmetic number, because the mean of its divisors is an integer number (1013743468164).

Almost surely, 2^{12111210202101} is an apocalyptic number.

It is an amenable number.

12111210202101 is a deficient number, since it is larger than the sum of its proper divisors (4108685288523).

12111210202101 is a wasteful number, since it uses less digits than its factorization.

12111210202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11977060.

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

Adding to 12111210202101 its reverse (10120201211121), we get a palindrome (22231411413222).

The spelling of 12111210202101 in words is "twelve trillion, one hundred eleven billion, two hundred ten million, two hundred two thousand, one hundred one".