12012221020101 has 16 divisors (see below), whose sum is σ = 16156618128000. Its totient is φ = 7938284827968.

The previous prime is 12012221020091. The next prime is 12012221020103. The reversal of 12012221020101 is 10102012221021.

It is not a de Polignac number, because 12012221020101 - 2¹³ = 12012221011909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012221020103) 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, 37238986 + ... + 37560171.

It is an arithmetic number, because the mean of its divisors is an integer number (1009788633000).

Almost surely, 2^{12012221020101} is an apocalyptic number.

It is an amenable number.

12012221020101 is a deficient number, since it is larger than the sum of its proper divisors (4144397107899).

12012221020101 is a wasteful number, since it uses less digits than its factorization.

12012221020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74799628.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12012221020101 its reverse (10102012221021), we get a palindrome (22114233241122).

The spelling of 12012221020101 in words is "twelve trillion, twelve billion, two hundred twenty-one million, twenty thousand, one hundred one".