212244342672 has 40 divisors (see below), whose sum is σ = 548994676576. Its totient is φ = 70658205696.

The previous prime is 212244342659. The next prime is 212244342689. The reversal of 212244342672 is 276243442212.

It is a super-3 number, since 3×212244342672³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212244342672.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2771473 + ... + 2847024.

Almost surely, 2^212244342672 is an apocalyptic number.

It is an amenable number.

212244342672 is an abundant number, since it is smaller than the sum of its proper divisors (336750333904).

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

212244342672 is a wasteful number, since it uses less digits than its factorization.

212244342672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5619295 (or 5619289 counting only the distinct ones).

The product of its digits is 258048, while the sum is 39.

Adding to 212244342672 its reverse (276243442212), we get a palindrome (488487784884).

The spelling of 212244342672 in words is "two hundred twelve billion, two hundred forty-four million, three hundred forty-two thousand, six hundred seventy-two".