212070312 has 80 divisors (see below), whose sum is σ = 601302240. Its totient is φ = 69820704.

The previous prime is 212070307. The next prime is 212070337. The reversal of 212070312 is 213070212.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 51813 + ... + 55755.

It is an arithmetic number, because the mean of its divisors is an integer number (7516278).

Almost surely, 2^212070312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212070312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300651120).

212070312 is an abundant number, since it is smaller than the sum of its proper divisors (389231928).

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

212070312 is a wasteful number, since it uses less digits than its factorization.

212070312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4044 (or 4031 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 212070312 is about 14562.6341023868. The cubic root of 212070312 is about 596.3391085524.

The spelling of 212070312 in words is "two hundred twelve million, seventy thousand, three hundred twelve".