2121120020112 has 40 divisors (see below), whose sum is σ = 5486522741856. Its totient is φ = 706141595136.

The previous prime is 2121120020099. The next prime is 2121120020137. The reversal of 2121120020112 is 2110200211212.

It is a junction number, because it is equal to n+sod(n) for n = 2121120020091 and 2121120020100.

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, 28037193 + ... + 28112744.

Almost surely, 2^{2121120020112} is an apocalyptic number.

It is an amenable number.

2121120020112 is an abundant number, since it is smaller than the sum of its proper divisors (3365402721744).

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

2121120020112 is a wasteful number, since it uses less digits than its factorization.

2121120020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56150735 (or 56150729 counting only the distinct ones).

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

Adding to 2121120020112 its reverse (2110200211212), we get a palindrome (4231320231324).

The spelling of 2121120020112 in words is "two trillion, one hundred twenty-one billion, one hundred twenty million, twenty thousand, one hundred twelve".