52101212 has 12 divisors (see below), whose sum is σ = 91682136. Its totient is φ = 25906320.

The previous prime is 52101193. The next prime is 52101227. The reversal of 52101212 is 21210125.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35258 + ... + 36705.

It is an arithmetic number, because the mean of its divisors is an integer number (7640178).

Almost surely, 2^52101212 is an apocalyptic number.

It is an amenable number.

52101212 is a deficient number, since it is larger than the sum of its proper divisors (39580924).

52101212 is a wasteful number, since it uses less digits than its factorization.

52101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72148 (or 72146 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 52101212 is about 7218.1169289504. The cubic root of 52101212 is about 373.4931221468.

Adding to 52101212 its reverse (21210125), we get a palindrome (73311337).

The spelling of 52101212 in words is "fifty-two million, one hundred one thousand, two hundred twelve".