212243314432 has 18 divisors (see below), whose sum is σ = 423657553928. Its totient is φ = 106121657088.

The previous prime is 212243314397. The next prime is 212243314469. The reversal of 212243314432 is 234413342212.

It is a junction number, because it is equal to n+sod(n) for n = 212243314394 and 212243314403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414537468 + ... + 414537979.

Almost surely, 2^212243314432 is an apocalyptic number.

It is an amenable number.

212243314432 is a deficient number, since it is larger than the sum of its proper divisors (211414239496).

212243314432 is an frugal number, since it uses more digits than its factorization.

212243314432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829075463 (or 829075449 counting only the distinct ones).

The product of its digits is 27648, while the sum is 31.

Adding to 212243314432 its reverse (234413342212), we get a palindrome (446656656644).

The spelling of 212243314432 in words is "two hundred twelve billion, two hundred forty-three million, three hundred fourteen thousand, four hundred thirty-two".