12001212001101 has 8 divisors (see below), whose sum is σ = 16001691015904. Its totient is φ = 8000770493520.

The previous prime is 12001212001073. The next prime is 12001212001109. The reversal of 12001212001101 is 10110021210021.

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

It is not a de Polignac number, because 12001212001101 - 2¹⁰ = 12001212000077 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 (12001212001109) 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, 8621515 + ... + 9916296.

It is an arithmetic number, because the mean of its divisors is an integer number (2000211376988).

Almost surely, 2^{12001212001101} is an apocalyptic number.

It is an amenable number.

12001212001101 is a deficient number, since it is larger than the sum of its proper divisors (4000479014803).

12001212001101 is a wasteful number, since it uses less digits than its factorization.

12001212001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18753611.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12001212001101 its reverse (10110021210021), we get a palindrome (22111233211122).

The spelling of 12001212001101 in words is "twelve trillion, one billion, two hundred twelve million, one thousand, one hundred one".