12102111112001 has 8 divisors (see below), whose sum is σ = 12105851282184. Its totient is φ = 12098371461120.

The previous prime is 12102111111901. The next prime is 12102111112019. The reversal of 12102111112001 is 10021111120121.

It can be written as a sum of positive squares in 4 ways, for example, as 296152551601 + 11805958560400 = 544199^2 + 3435980^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12102111112001 is a prime.

It is a super-2 number, since 2×12102111112001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12102111112501) 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, 49362761 + ... + 49607321.

It is an arithmetic number, because the mean of its divisors is an integer number (1513231410273).

Almost surely, 2^{12102111112001} is an apocalyptic number.

It is an amenable number.

12102111112001 is a deficient number, since it is larger than the sum of its proper divisors (3740170183).

12102111112001 is a wasteful number, since it uses less digits than its factorization.

12102111112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259651.

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

Adding to 12102111112001 its reverse (10021111120121), we get a palindrome (22123222232122).

The spelling of 12102111112001 in words is "twelve trillion, one hundred two billion, one hundred eleven million, one hundred twelve thousand, one".