5205121112 has 8 divisors (see below), whose sum is σ = 9759602100. Its totient is φ = 2602560552.

The previous prime is 5205121073. The next prime is 5205121121. The reversal of 5205121112 is 2111215025.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325320062 + ... + 325320077.

Almost surely, 2^5205121112 is an apocalyptic number.

It is an amenable number.

5205121112 is a deficient number, since it is larger than the sum of its proper divisors (4554480988).

5205121112 is a wasteful number, since it uses less digits than its factorization.

5205121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650640145 (or 650640141 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 5205121112 is about 72146.5252940154. The cubic root of 5205121112 is about 1733.0467558105.

Adding to 5205121112 its reverse (2111215025), we get a palindrome (7316336137).

The spelling of 5205121112 in words is "five billion, two hundred five million, one hundred twenty-one thousand, one hundred twelve".