1215022316 has 12 divisors (see below), whose sum is σ = 2126655888. Its totient is φ = 607406352.

The previous prime is 1215022301. The next prime is 1215022321. The reversal of 1215022316 is 6132205121.

It is a junction number, because it is equal to n+sod(n) for n = 1215022291 and 1215022300.

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, 3665 + ... + 49431.

It is an arithmetic number, because the mean of its divisors is an integer number (177221324).

Almost surely, 2^1215022316 is an apocalyptic number.

It is an amenable number.

1215022316 is a deficient number, since it is larger than the sum of its proper divisors (911633572).

1215022316 is a wasteful number, since it uses less digits than its factorization.

1215022316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52408 (or 52406 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1215022316 is about 34857.1702236427. The cubic root of 1215022316 is about 1067.0745242808.

Adding to 1215022316 its reverse (6132205121), we get a palindrome (7347227437).

The spelling of 1215022316 in words is "one billion, two hundred fifteen million, twenty-two thousand, three hundred sixteen".