215366012 has 12 divisors (see below), whose sum is σ = 378678216. Its totient is φ = 107172240.

The previous prime is 215366009. The next prime is 215366017. The reversal of 215366012 is 210663512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215366017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126743 + ... + 128430.

It is an arithmetic number, because the mean of its divisors is an integer number (31556518).

Almost surely, 2^215366012 is an apocalyptic number.

It is an amenable number.

215366012 is a deficient number, since it is larger than the sum of its proper divisors (163312204).

215366012 is a wasteful number, since it uses less digits than its factorization.

215366012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255388 (or 255386 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 215366012 is about 14675.3538969253. The cubic root of 215366012 is about 599.4123988033.

The spelling of 215366012 in words is "two hundred fifteen million, three hundred sixty-six thousand, twelve".