2122009943 has 2 divisors, whose sum is σ = 2122009944. Its totient is φ = 2122009942.

The previous prime is 2122009933. The next prime is 2122009961. The reversal of 2122009943 is 3499002212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2122009943 - 2¹⁰ = 2122008919 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122009933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061004971 + 1061004972.

It is an arithmetic number, because the mean of its divisors is an integer number (1061004972).

Almost surely, 2^2122009943 is an apocalyptic number.

2122009943 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122009943 is an equidigital number, since it uses as much as digits as its factorization.

2122009943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 2122009943 is about 46065.2791481827. The cubic root of 2122009943 is about 1285.0375100458.

The spelling of 2122009943 in words is "two billion, one hundred twenty-two million, nine thousand, nine hundred forty-three".