4012210109 has 2 divisors, whose sum is σ = 4012210110. Its totient is φ = 4012210108.

The previous prime is 4012210093. The next prime is 4012210121. The reversal of 4012210109 is 9010122104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2642988100 + 1369222009 = 51410^2 + 37003^2 .

It is a cyclic number.

It is not a de Polignac number, because 4012210109 - 2⁴ = 4012210093 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4012210199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2006105054 + 2006105055.

It is an arithmetic number, because the mean of its divisors is an integer number (2006105055).

Almost surely, 2^4012210109 is an apocalyptic number.

It is an amenable number.

4012210109 is a deficient number, since it is larger than the sum of its proper divisors (1).

4012210109 is an equidigital number, since it uses as much as digits as its factorization.

4012210109 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 4012210109 is about 63342.0090382362. The cubic root of 4012210109 is about 1589.0146062633.

The spelling of 4012210109 in words is "four billion, twelve million, two hundred ten thousand, one hundred nine".