212247247704240 has 480 divisors, whose sum is σ = 778074088356864. Its totient is φ = 47712008171520.

The previous prime is 212247247704229. The next prime is 212247247704253. The reversal of 212247247704240 is 42407742742212.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 212247247704240.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 485928345 + ... + 486364935.

Almost surely, 2^{212247247704240} is an apocalyptic number.

212247247704240 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 212247247704240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389037044178432).

212247247704240 is an abundant number, since it is smaller than the sum of its proper divisors (565826840652624).

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

212247247704240 is a wasteful number, since it uses less digits than its factorization.

212247247704240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437305 (or 437292 counting only the distinct ones).

The product of its (nonzero) digits is 2809856, while the sum is 48.

The spelling of 212247247704240 in words is "two hundred twelve trillion, two hundred forty-seven billion, two hundred forty-seven million, seven hundred four thousand, two hundred forty".