2122605113 has 2 divisors, whose sum is σ = 2122605114. Its totient is φ = 2122605112.

The previous prime is 2122605097. The next prime is 2122605157. The reversal of 2122605113 is 3115062212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1551729664 + 570875449 = 39392^2 + 23893^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122605113 - 2⁴ = 2122605097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2122605713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061302556 + 1061302557.

It is an arithmetic number, because the mean of its divisors is an integer number (1061302557).

Almost surely, 2^2122605113 is an apocalyptic number.

It is an amenable number.

2122605113 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122605113 is an equidigital number, since it uses as much as digits as its factorization.

2122605113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2122605113 is about 46071.7387668406. The cubic root of 2122605113 is about 1285.1576389648.

Adding to 2122605113 its reverse (3115062212), we get a palindrome (5237667325).

The spelling of 2122605113 in words is "two billion, one hundred twenty-two million, six hundred five thousand, one hundred thirteen".