12101000021101 has 4 divisors (see below), whose sum is σ = 12812823551772. Its totient is φ = 11389176490432.

The previous prime is 12101000021093. The next prime is 12101000021111. The reversal of 12101000021101 is 10112000010121.

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 4987316232900 + 7113683788201 = 2233230^2 + 2667149^2 .

It is a cyclic number.

It is not a de Polignac number, because 12101000021101 - 2³ = 12101000021093 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 (12101000021111) 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 3 ways as a sum of consecutive naturals, for example, 355911765310 + ... + 355911765343.

It is an arithmetic number, because the mean of its divisors is an integer number (3203205887943).

Almost surely, 2^{12101000021101} is an apocalyptic number.

It is an amenable number.

12101000021101 is a deficient number, since it is larger than the sum of its proper divisors (711823530671).

12101000021101 is an equidigital number, since it uses as much as digits as its factorization.

12101000021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711823530670.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12101000021101 its reverse (10112000010121), we get a palindrome (22213000031222).

The spelling of 12101000021101 in words is "twelve trillion, one hundred one billion, twenty-one thousand, one hundred one".