2005851122 has 18 divisors (see below), whose sum is σ = 3308316879. Its totient is φ = 911433820.

The previous prime is 2005851121. The next prime is 2005851167. The reversal of 2005851122 is 2211585002.

It can be written as a sum of positive squares in only one way, i.e., 1002925561 + 1002925561 = 31669^2 + 31669^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=31669.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2005851091 and 2005851100.

It is not an unprimeable number, because it can be changed into a prime (2005851121) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 695279 + ... + 698157.

Almost surely, 2^2005851122 is an apocalyptic number.

2005851122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2005851122 is a deficient number, since it is larger than the sum of its proper divisors (1302465757).

2005851122 is an frugal number, since it uses more digits than its factorization.

2005851122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5782 (or 2892 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 2005851122 is about 44786.7293067935. The cubic root of 2005851122 is about 1261.1485122954.

The spelling of 2005851122 in words is "two billion, five million, eight hundred fifty-one thousand, one hundred twenty-two".