2112022109 has 2 divisors, whose sum is σ = 2112022110. Its totient is φ = 2112022108.

The previous prime is 2112022091. The next prime is 2112022111. The reversal of 2112022109 is 9012202112.

It is a happy number.

Together with previous prime (2112022091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1849258009 + 262764100 = 43003^2 + 16210^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112022109 - 2²⁰ = 2110973533 is a prime.

Together with 2112022111, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112022309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056011054 + 1056011055.

It is an arithmetic number, because the mean of its divisors is an integer number (1056011055).

Almost surely, 2^2112022109 is an apocalyptic number.

It is an amenable number.

2112022109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112022109 is an equidigital number, since it uses as much as digits as its factorization.

2112022109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 2112022109 is about 45956.7417143557. The cubic root of 2112022109 is about 1283.0182089635.

The spelling of 2112022109 in words is "two billion, one hundred twelve million, twenty-two thousand, one hundred nine".