2121103021112 has 16 divisors (see below), whose sum is σ = 3977145501000. Its totient is φ = 1060530887520.

The previous prime is 2121103021097. The next prime is 2121103021127. The reversal of 2121103021112 is 2111203011212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2121103021097) and next prime (2121103021127).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2136314 + ... + 2967497.

Almost surely, 2^{2121103021112} is an apocalyptic number.

It is an amenable number.

2121103021112 is a deficient number, since it is larger than the sum of its proper divisors (1856042479888).

2121103021112 is a wasteful number, since it uses less digits than its factorization.

2121103021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5155766 (or 5155762 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 2121103021112 its reverse (2111203011212), we get a palindrome (4232306032324).

The spelling of 2121103021112 in words is "two trillion, one hundred twenty-one billion, one hundred three million, twenty-one thousand, one hundred twelve".