1216300052 has 12 divisors (see below), whose sum is σ = 2322027456. Its totient is φ = 552863640.

The previous prime is 1216300039. The next prime is 1216300061. The reversal of 1216300052 is 2500036121.

It is a junction number, because it is equal to n+sod(n) for n = 1216299997 and 1216300033.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13821548 + ... + 13821635.

It is an arithmetic number, because the mean of its divisors is an integer number (193502288).

Almost surely, 2^1216300052 is an apocalyptic number.

It is an amenable number.

1216300052 is a deficient number, since it is larger than the sum of its proper divisors (1105727404).

1216300052 is a wasteful number, since it uses less digits than its factorization.

1216300052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27643198 (or 27643196 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1216300052 is about 34875.4935735682. The cubic root of 1216300052 is about 1067.4484438534.

Adding to 1216300052 its reverse (2500036121), we get a palindrome (3716336173).

The spelling of 1216300052 in words is "one billion, two hundred sixteen million, three hundred thousand, fifty-two".