51212101152 has 48 divisors (see below), whose sum is σ = 134443495872. Its totient is φ = 17069210880.

The previous prime is 51212101151. The next prime is 51212101159. The reversal of 51212101152 is 25110121215.

51212101152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (51212101151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1946002 + ... + 1972142.

It is an arithmetic number, because the mean of its divisors is an integer number (2800906164).

Almost surely, 2^51212101152 is an apocalyptic number.

It is an amenable number.

51212101152 is an abundant number, since it is smaller than the sum of its proper divisors (83231394720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51212101152 is a wasteful number, since it uses less digits than its factorization.

51212101152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46561 (or 46553 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 21.

Adding to 51212101152 its reverse (25110121215), we get a palindrome (76322222367).

The spelling of 51212101152 in words is "fifty-one billion, two hundred twelve million, one hundred one thousand, one hundred fifty-two".