215021224000 has 224 divisors, whose sum is σ = 589595610240. Its totient is φ = 77020416000.

The previous prime is 215021223971. The next prime is 215021224007. The reversal of 215021224000 is 422120512.

It is not an unprimeable number, because it can be changed into a prime (215021224007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5877766 + ... + 5914234.

It is an arithmetic number, because the mean of its divisors is an integer number (2632123260).

Almost surely, 2^215021224000 is an apocalyptic number.

215021224000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215021224000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294797805120).

215021224000 is an abundant number, since it is smaller than the sum of its proper divisors (374574386240).

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

215021224000 is a wasteful number, since it uses less digits than its factorization.

215021224000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36574 (or 36554 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 215021224000 its reverse (422120512), we get a palindrome (215443344512).

The spelling of 215021224000 in words is "two hundred fifteen billion, twenty-one million, two hundred twenty-four thousand".