2112122101 has 8 divisors (see below), whose sum is σ = 2204755200. Its totient is φ = 2021020320.

The previous prime is 2112122081. The next prime is 2112122119. The reversal of 2112122101 is 1012212112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2112122101 - 2¹³ = 2112113909 is a prime.

It is a super-2 number, since 2×2112122101² = 8922119539065308402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112122191) 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, 380011 + ... + 385528.

It is an arithmetic number, because the mean of its divisors is an integer number (275594400).

Almost surely, 2^2112122101 is an apocalyptic number.

It is an amenable number.

2112122101 is a deficient number, since it is larger than the sum of its proper divisors (92633099).

2112122101 is an equidigital number, since it uses as much as digits as its factorization.

2112122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765659.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 2112122101 is about 45957.8295940964. The cubic root of 2112122101 is about 1283.0384564682.

Adding to 2112122101 its reverse (1012212112), we get a palindrome (3124334213).

The spelling of 2112122101 in words is "two billion, one hundred twelve million, one hundred twenty-two thousand, one hundred one".