212247532520000 has 140 divisors (see below), whose sum is σ = 527192488461276. Its totient is φ = 84755834880000.

The previous prime is 212247532519991. The next prime is 212247532520003. The reversal of 212247532520000 is 25235742212.

It can be written as a sum of positive squares in 10 ways, for example, as 98892841582144 + 113354690937856 = 9944488^2 + 10646816^2 .

It is not an unprimeable number, because it can be changed into a prime (212247532520003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19245980 + ... + 28194020.

Almost surely, 2^{212247532520000} is an apocalyptic number.

212247532520000 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 212247532520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263596244230638).

212247532520000 is an abundant number, since it is smaller than the sum of its proper divisors (314944955941276).

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

212247532520000 is an frugal number, since it uses more digits than its factorization.

212247532520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8948666 (or 8948641 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 35.

The spelling of 212247532520000 in words is "two hundred twelve trillion, two hundred forty-seven billion, five hundred thirty-two million, five hundred twenty thousand".