212079720000 has 140 divisors (see below), whose sum is σ = 701185436336. Its totient is φ = 56554560000.

The previous prime is 212079719983. The next prime is 212079720049. The reversal of 212079720000 is 27970212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 212079720000.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 763666 + ... + 1003665.

Almost surely, 2^212079720000 is an apocalyptic number.

212079720000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212079720000 is an abundant number, since it is smaller than the sum of its proper divisors (489105716336).

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

212079720000 is an equidigital number, since it uses as much as digits as its factorization.

212079720000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767366 (or 1767341 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The spelling of 212079720000 in words is "two hundred twelve billion, seventy-nine million, seven hundred twenty thousand".