2112200609 has 2 divisors, whose sum is σ = 2112200610. Its totient is φ = 2112200608.

The previous prime is 2112200591. The next prime is 2112200647. The reversal of 2112200609 is 9060022112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2013496384 + 98704225 = 44872^2 + 9935^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112200609 - 2⁸ = 2112200353 is a prime.

It is a super-2 number, since 2×2112200609² = 8922782825319941762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2112200659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056100304 + 1056100305.

It is an arithmetic number, because the mean of its divisors is an integer number (1056100305).

Almost surely, 2^2112200609 is an apocalyptic number.

It is an amenable number.

2112200609 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112200609 is an equidigital number, since it uses as much as digits as its factorization.

2112200609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 2112200609 is about 45958.6837170083. The cubic root of 2112200609 is about 1283.0543532030.

The spelling of 2112200609 in words is "two billion, one hundred twelve million, two hundred thousand, six hundred nine".