1550122216 has 8 divisors (see below), whose sum is σ = 2906479170. Its totient is φ = 775061104.

The previous prime is 1550122207. The next prime is 1550122229. The reversal of 1550122216 is 6122210551.

It can be written as a sum of positive squares in only one way, i.e., 1549996900 + 125316 = 39370^2 + 354^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96882631 + ... + 96882646.

Almost surely, 2^1550122216 is an apocalyptic number.

It is an amenable number.

1550122216 is a deficient number, since it is larger than the sum of its proper divisors (1356356954).

1550122216 is a wasteful number, since it uses less digits than its factorization.

1550122216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193765283 (or 193765279 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1550122216 is about 39371.5914842161. The cubic root of 1550122216 is about 1157.3249436480.

Adding to 1550122216 its reverse (6122210551), we get a palindrome (7672332767).

The spelling of 1550122216 in words is "one billion, five hundred fifty million, one hundred twenty-two thousand, two hundred sixteen".