215041244212 has 12 divisors (see below), whose sum is σ = 380856180096. Its totient is φ = 106225192760.

The previous prime is 215041244189. The next prime is 215041244273. The reversal of 215041244212 is 212442140512.

It is a congruent number.

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, 323856964 + ... + 323857627.

It is an arithmetic number, because the mean of its divisors is an integer number (31738015008).

Almost surely, 2^215041244212 is an apocalyptic number.

It is an amenable number.

215041244212 is a deficient number, since it is larger than the sum of its proper divisors (165814935884).

215041244212 is a wasteful number, since it uses less digits than its factorization.

215041244212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647714678 (or 647714676 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

Adding to 215041244212 its reverse (212442140512), we get a palindrome (427483384724).

The spelling of 215041244212 in words is "two hundred fifteen billion, forty-one million, two hundred forty-four thousand, two hundred twelve".