1365216212 has 24 divisors (see below), whose sum is σ = 2558099880. Its totient is φ = 635233280.

The previous prime is 1365216199. The next prime is 1365216227. The reversal of 1365216212 is 2126125631.

It can be written as a sum of positive squares in 4 ways, for example, as 217090756 + 1148125456 = 14734^2 + 33884^2 .

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 106739 + ... + 118842.

It is an arithmetic number, because the mean of its divisors is an integer number (106587495).

Almost surely, 2^1365216212 is an apocalyptic number.

It is an amenable number.

1365216212 is a deficient number, since it is larger than the sum of its proper divisors (1192883668).

1365216212 is a wasteful number, since it uses less digits than its factorization.

1365216212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225691 (or 225689 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 1365216212 is about 36948.8323496156. The cubic root of 1365216212 is about 1109.3463164145.

The spelling of 1365216212 in words is "one billion, three hundred sixty-five million, two hundred sixteen thousand, two hundred twelve".