12021101100101 has 4 divisors (see below), whose sum is σ = 12036981023052. Its totient is φ = 12005221177152.

The previous prime is 12021101100031. The next prime is 12021101100109. The reversal of 12021101100101 is 10100110112021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2609029332001 + 9412071768100 = 1615249^2 + 3067910^2 .

It is a cyclic number.

It is not a de Polignac number, because 12021101100101 - 2²⁶ = 12021033991237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021101100109) 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, 7939960340 + ... + 7939961853.

It is an arithmetic number, because the mean of its divisors is an integer number (3009245255763).

Almost surely, 2^{12021101100101} is an apocalyptic number.

It is an amenable number.

12021101100101 is a deficient number, since it is larger than the sum of its proper divisors (15879922951).

12021101100101 is an equidigital number, since it uses as much as digits as its factorization.

12021101100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15879922950.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12021101100101 its reverse (10100110112021), we get a palindrome (22121211212122).

The spelling of 12021101100101 in words is "twelve trillion, twenty-one billion, one hundred one million, one hundred thousand, one hundred one".