212850305920 has 128 divisors (see below), whose sum is σ = 612144921600. Its totient is φ = 69136312320.

The previous prime is 212850305917. The next prime is 212850305923. The reversal of 212850305920 is 29503058212.

212850305920 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (212850305917) and next prime (212850305923).

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 212850305920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212850305923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1165176 + ... + 1335415.

It is an arithmetic number, because the mean of its divisors is an integer number (4782382200).

Almost surely, 2^212850305920 is an apocalyptic number.

212850305920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212850305920 is an abundant number, since it is smaller than the sum of its proper divisors (399294615680).

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

212850305920 is a wasteful number, since it uses less digits than its factorization.

212850305920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500636 (or 2500624 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 212850305920 in words is "two hundred twelve billion, eight hundred fifty million, three hundred five thousand, nine hundred twenty".