5211541212 has 12 divisors (see below), whose sum is σ = 12160262856. Its totient is φ = 1737180400.

The previous prime is 5211541211. The next prime is 5211541229. The reversal of 5211541212 is 2121451125.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5211541211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217147539 + ... + 217147562.

It is an arithmetic number, because the mean of its divisors is an integer number (1013355238).

Almost surely, 2^5211541212 is an apocalyptic number.

It is an amenable number.

5211541212 is an abundant number, since it is smaller than the sum of its proper divisors (6948721644).

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

5211541212 is a wasteful number, since it uses less digits than its factorization.

5211541212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434295108 (or 434295106 counting only the distinct ones).

The product of its digits is 800, while the sum is 24.

The square root of 5211541212 is about 72191.0050629578. The cubic root of 5211541212 is about 1733.7589878534.

Adding to 5211541212 its reverse (2121451125), we get a palindrome (7332992337).

The spelling of 5211541212 in words is "five billion, two hundred eleven million, five hundred forty-one thousand, two hundred twelve".