2112002211101 has 4 divisors (see below), whose sum is σ = 2112178679100. Its totient is φ = 2111825743104.

The previous prime is 2112002211097. The next prime is 2112002211169. The reversal of 2112002211101 is 1011122002112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 991846687225 + 1120155523876 = 995915^2 + 1058374^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112002211101 - 2² = 2112002211097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112082211101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88216046 + ... + 88239983.

It is an arithmetic number, because the mean of its divisors is an integer number (528044669775).

Almost surely, 2^{2112002211101} is an apocalyptic number.

It is an amenable number.

2112002211101 is a deficient number, since it is larger than the sum of its proper divisors (176467999).

2112002211101 is a wasteful number, since it uses less digits than its factorization.

2112002211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176467998.

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

Adding to 2112002211101 its reverse (1011122002112), we get a palindrome (3123124213213).

The spelling of 2112002211101 in words is "two trillion, one hundred twelve billion, two million, two hundred eleven thousand, one hundred one".