12111210112001 has 32 divisors (see below), whose sum is σ = 16299830942976. Its totient is φ = 8690667552000.

The previous prime is 12111210111937. The next prime is 12111210112009. The reversal of 12111210112001 is 10021101211121.

It is not a de Polignac number, because 12111210112001 - 2⁶ = 12111210111937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12111210112009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13948070 + ... + 14790911.

It is an arithmetic number, because the mean of its divisors is an integer number (509369716968).

Almost surely, 2^{12111210112001} is an apocalyptic number.

12111210112001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12111210112001 is a deficient number, since it is larger than the sum of its proper divisors (4188620830975).

12111210112001 is a wasteful number, since it uses less digits than its factorization.

12111210112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28739433.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12111210112001 its reverse (10021101211121), we get a palindrome (22132311323122).

The spelling of 12111210112001 in words is "twelve trillion, one hundred eleven billion, two hundred ten million, one hundred twelve thousand, one".