2005121114 has 4 divisors (see below), whose sum is σ = 3007681674. Its totient is φ = 1002560556.

The previous prime is 2005121101. The next prime is 2005121119. The reversal of 2005121114 is 4111215002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4111215002 = 2 ⋅2055607501.

It can be written as a sum of positive squares in only one way, i.e., 1992283225 + 12837889 = 44635^2 + 3583^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2005121092 and 2005121101.

It is not an unprimeable number, because it can be changed into a prime (2005121119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501280277 + ... + 501280280.

Almost surely, 2^2005121114 is an apocalyptic number.

2005121114 is a deficient number, since it is larger than the sum of its proper divisors (1002560560).

2005121114 is a wasteful number, since it uses less digits than its factorization.

2005121114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002560559.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 2005121114 is about 44778.5787402861. The cubic root of 2005121114 is about 1260.9954999071.

Adding to 2005121114 its reverse (4111215002), we get a palindrome (6116336116).

The spelling of 2005121114 in words is "two billion, five million, one hundred twenty-one thousand, one hundred fourteen".