2101121021112 has 32 divisors (see below), whose sum is σ = 5259295558800. Its totient is φ = 699507939584.

The previous prime is 2101121021101. The next prime is 2101121021137. The reversal of 2101121021112 is 2111201211012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2101121021091 and 2101121021100.

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, 54088563 + ... + 54127394.

Almost surely, 2^{2101121021112} is an apocalyptic number.

It is an amenable number.

2101121021112 is an abundant number, since it is smaller than the sum of its proper divisors (3158174537688).

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

2101121021112 is a wasteful number, since it uses less digits than its factorization.

2101121021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108216775 (or 108216771 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2101121021112 its reverse (2111201211012), we get a palindrome (4212322232124).

The spelling of 2101121021112 in words is "two trillion, one hundred one billion, one hundred twenty-one million, twenty-one thousand, one hundred twelve".