1215214116 has 12 divisors (see below), whose sum is σ = 2835499632. Its totient is φ = 405071368.

The previous prime is 1215214097. The next prime is 1215214171. The reversal of 1215214116 is 6114125121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1215214116² = 2953490695451322912, which contains 22 as substring.

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, 50633910 + ... + 50633933.

It is an arithmetic number, because the mean of its divisors is an integer number (236291636).

Almost surely, 2^1215214116 is an apocalyptic number.

It is an amenable number.

1215214116 is an abundant number, since it is smaller than the sum of its proper divisors (1620285516).

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

1215214116 is a wasteful number, since it uses less digits than its factorization.

1215214116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101267850 (or 101267848 counting only the distinct ones).

The product of its digits is 480, while the sum is 24.

The square root of 1215214116 is about 34859.9213424242. The cubic root of 1215214116 is about 1067.1306697860.

Adding to 1215214116 its reverse (6114125121), we get a palindrome (7329339237).

The spelling of 1215214116 in words is "one billion, two hundred fifteen million, two hundred fourteen thousand, one hundred sixteen".