2112021110101 has 24 divisors (see below), whose sum is σ = 2523490300800. Its totient is φ = 1731427569696.

The previous prime is 2112021110027. The next prime is 2112021110141. The reversal of 2112021110101 is 1010111202112.

It is a happy number.

It is not a de Polignac number, because 2112021110101 - 2²³ = 2112012721493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112021110141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51077031 + ... + 51118363.

It is an arithmetic number, because the mean of its divisors is an integer number (105145429200).

Almost surely, 2^{2112021110101} is an apocalyptic number.

It is an amenable number.

2112021110101 is a deficient number, since it is larger than the sum of its proper divisors (411469190699).

2112021110101 is a wasteful number, since it uses less digits than its factorization.

2112021110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55185 (or 55162 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2112021110101 its reverse (1010111202112), we get a palindrome (3122132312213).

The spelling of 2112021110101 in words is "two trillion, one hundred twelve billion, twenty-one million, one hundred ten thousand, one hundred one".