12000012101 has 16 divisors (see below), whose sum is σ = 15109193088. Its totient is φ = 9258072000.

The previous prime is 12000012091. The next prime is 12000012121. The reversal of 12000012101 is 10121000021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12000012101 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000012121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 763730 + ... + 779283.

It is an arithmetic number, because the mean of its divisors is an integer number (944324568).

Almost surely, 2^12000012101 is an apocalyptic number.

12000012101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12000012101 is a deficient number, since it is larger than the sum of its proper divisors (3109180987).

12000012101 is a wasteful number, since it uses less digits than its factorization.

12000012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543132.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12000012101 its reverse (10121000021), we get a palindrome (22121012122).

The spelling of 12000012101 in words is "twelve billion, twelve thousand, one hundred one".