2102121002112 has 64 divisors (see below), whose sum is σ = 5584631057760. Its totient is φ = 700597555200.

The previous prime is 2102121002099. The next prime is 2102121002147. The reversal of 2102121002112 is 2112001212012.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 2102121002091 and 2102121002100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2052888 + ... + 2901480.

Almost surely, 2^{2102121002112} is an apocalyptic number.

It is an amenable number.

2102121002112 is an abundant number, since it is smaller than the sum of its proper divisors (3482510055648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2102121002112 is an equidigital number, since it uses as much as digits as its factorization.

2102121002112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855061 (or 855049 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2102121002112 its reverse (2112001212012), we get a palindrome (4214122214124).

The spelling of 2102121002112 in words is "two trillion, one hundred two billion, one hundred twenty-one million, two thousand, one hundred twelve".