2121000010112 has 64 divisors (see below), whose sum is σ = 4422229624800. Its totient is φ = 1011380772864.

The previous prime is 2121000010069. The next prime is 2121000010147. The reversal of 2121000010112 is 2110100001212.

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 = 2121000010093 and 2121000010102.

It is a congruent number.

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, 76787 + ... + 2061042.

Almost surely, 2^{2121000010112} is an apocalyptic number.

It is an amenable number.

2121000010112 is an abundant number, since it is smaller than the sum of its proper divisors (2301229614688).

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

2121000010112 is a wasteful number, since it uses less digits than its factorization.

2121000010112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138203 (or 2138191 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2121000010112 its reverse (2110100001212), we get a palindrome (4231100011324).

The spelling of 2121000010112 in words is "two trillion, one hundred twenty-one billion, ten thousand, one hundred twelve".