52113223212 has 12 divisors (see below), whose sum is σ = 121597520856. Its totient is φ = 17371074400.

The previous prime is 52113223181. The next prime is 52113223219. The reversal of 52113223212 is 21232231125.

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

It is not an unprimeable number, because it can be changed into a prime (52113223219) 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, 2171384289 + ... + 2171384312.

It is an arithmetic number, because the mean of its divisors is an integer number (10133126738).

Almost surely, 2^52113223212 is an apocalyptic number.

It is an amenable number.

52113223212 is an abundant number, since it is smaller than the sum of its proper divisors (69484297644).

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

52113223212 is a wasteful number, since it uses less digits than its factorization.

52113223212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4342768608 (or 4342768606 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

Adding to 52113223212 its reverse (21232231125), we get a palindrome (73345454337).

The spelling of 52113223212 in words is "fifty-two billion, one hundred thirteen million, two hundred twenty-three thousand, two hundred twelve".