212282244 has 36 divisors (see below), whose sum is σ = 539400316. Its totient is φ = 70391808.

The previous prime is 212282219. The next prime is 212282251. The reversal of 212282244 is 442282212.

It can be written as a sum of positive squares in 2 ways, for example, as 45562500 + 166719744 = 6750^2 + 12912^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×212282244² = 90127502235351072, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8329 + ... + 22224.

Almost surely, 2^212282244 is an apocalyptic number.

It is an amenable number.

212282244 is an abundant number, since it is smaller than the sum of its proper divisors (327118072).

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

212282244 is a wasteful number, since it uses less digits than its factorization.

212282244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30756 (or 30751 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

The square root of 212282244 is about 14569.9088535241. The cubic root of 212282244 is about 596.5376924746.

The spelling of 212282244 in words is "two hundred twelve million, two hundred eighty-two thousand, two hundred forty-four".