12002100111112 has 16 divisors (see below), whose sum is σ = 22504016308860. Its totient is φ = 6001029095424.

The previous prime is 12002100111101. The next prime is 12002100111121. The reversal of 12002100111112 is 21111100120021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11994266799076 + 7833312036 = 3463274^2 + 88506^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12002100111092 and 12002100111101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36553 + ... + 4899544.

Almost surely, 2^{12002100111112} is an apocalyptic number.

It is an amenable number.

12002100111112 is a deficient number, since it is larger than the sum of its proper divisors (10501916197748).

12002100111112 is a wasteful number, since it uses less digits than its factorization.

12002100111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5240040 (or 5240036 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12002100111112 its reverse (21111100120021), we get a palindrome (33113200231133).

The spelling of 12002100111112 in words is "twelve trillion, two billion, one hundred million, one hundred eleven thousand, one hundred twelve".