12001001101 has 8 divisors (see below), whose sum is σ = 12144583800. Its totient is φ = 11857612800.

The previous prime is 12001001087. The next prime is 12001001113. The reversal of 12001001101 is 10110010021.

It can be written as a sum of positive squares in 4 ways, for example, as 605652100 + 11395349001 = 24610^2 + 106749^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12001001101 - 2⁵ = 12001001069 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 (12001061101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77551 + ... + 173251.

It is an arithmetic number, because the mean of its divisors is an integer number (1518072975).

Almost surely, 2^12001001101 is an apocalyptic number.

It is an amenable number.

12001001101 is a deficient number, since it is larger than the sum of its proper divisors (143582699).

12001001101 is an equidigital number, since it uses as much as digits as its factorization.

12001001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97199.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 12001001101 its reverse (10110010021), we get a palindrome (22111011122).

The spelling of 12001001101 in words is "twelve billion, one million, one thousand, one hundred one".