212470636720 has 160 divisors (see below), whose sum is σ = 517097260800. Its totient is φ = 81088831488.

The previous prime is 212470636681. The next prime is 212470636723. The reversal of 212470636720 is 27636074212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (212470636723) 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, 75962362 + ... + 75965158.

It is an arithmetic number, because the mean of its divisors is an integer number (3231857880).

Almost surely, 2^212470636720 is an apocalyptic number.

212470636720 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 212470636720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258548630400).

212470636720 is an abundant number, since it is smaller than the sum of its proper divisors (304626624080).

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

212470636720 is a wasteful number, since it uses less digits than its factorization.

212470636720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3215 (or 3209 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 40.

The spelling of 212470636720 in words is "two hundred twelve billion, four hundred seventy million, six hundred thirty-six thousand, seven hundred twenty".