1216300050 has 288 divisors, whose sum is σ = 3964299840. Its totient is φ = 276786720.

The previous prime is 1216300039. The next prime is 1216300061. The reversal of 1216300050 is 500036121.

It is an interprime number because it is at equal distance from previous prime (1216300039) and next prime (1216300061).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1216299996 and 1216300032.

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 143 ways as a sum of consecutive naturals, for example, 5358037 + ... + 5358263.

It is an arithmetic number, because the mean of its divisors is an integer number (13764930).

Almost surely, 2^1216300050 is an apocalyptic number.

1216300050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1216300050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1982149920).

1216300050 is an abundant number, since it is smaller than the sum of its proper divisors (2747999790).

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

1216300050 is an equidigital number, since it uses as much as digits as its factorization.

1216300050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1216300050 is about 34875.4935448948. The cubic root of 1216300050 is about 1067.4484432683.

Adding to 1216300050 its reverse (500036121), we get a palindrome (1716336171).

The spelling of 1216300050 in words is "one billion, two hundred sixteen million, three hundred thousand, fifty".