2121021010112 has 56 divisors (see below), whose sum is σ = 4227782294736. Its totient is φ = 1055754805248.

The previous prime is 2121021010111. The next prime is 2121021010123. The reversal of 2121021010112 is 2110101201212.

It is not an unprimeable number, because it can be changed into a prime (2121021010111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102986888 + ... + 103007480.

It is an arithmetic number, because the mean of its divisors is an integer number (75496112406).

Almost surely, 2^{2121021010112} is an apocalyptic number.

It is an amenable number.

2121021010112 is a deficient number, since it is larger than the sum of its proper divisors (2106761284624).

2121021010112 is a wasteful number, since it uses less digits than its factorization.

2121021010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27745 (or 27735 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2121021010112 its reverse (2110101201212), we get a palindrome (4231122211324).

The spelling of 2121021010112 in words is "two trillion, one hundred twenty-one billion, twenty-one million, ten thousand, one hundred twelve".