1216050216 has 64 divisors (see below), whose sum is σ = 3086899200. Its totient is φ = 399161088.

The previous prime is 1216050211. The next prime is 1216050229. The reversal of 1216050216 is 6120506121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1216050211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451225 + ... + 453911.

It is an arithmetic number, because the mean of its divisors is an integer number (48232800).

Almost surely, 2^1216050216 is an apocalyptic number.

It is an amenable number.

1216050216 is an abundant number, since it is smaller than the sum of its proper divisors (1870848984).

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

1216050216 is a wasteful number, since it uses less digits than its factorization.

1216050216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978 (or 2974 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1216050216 is about 34871.9115621728. The cubic root of 1216050216 is about 1067.3753518805.

Adding to 1216050216 its reverse (6120506121), we get a palindrome (7336556337).

The spelling of 1216050216 in words is "one billion, two hundred sixteen million, fifty thousand, two hundred sixteen".