212443559056 has 45 divisors (see below), whose sum is σ = 418689354603. Its totient is φ = 104425128960.

The previous prime is 212443559039. The next prime is 212443559057. The reversal of 212443559056 is 650955344212.

The square root of 212443559056 is 460916.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 72208288656 + 140235270400 = 268716^2 + 374480^2 .

It is a super-2 number, since 2×212443559056² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212443558997 and 212443559015.

It is not an unprimeable number, because it can be changed into a prime (212443559057) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 112462560 + ... + 112464448.

Almost surely, 2^212443559056 is an apocalyptic number.

212443559056 is the 460916-th square number.

It is an amenable number.

212443559056 is a deficient number, since it is larger than the sum of its proper divisors (206245795547).

212443559056 is an frugal number, since it uses more digits than its factorization.

212443559056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3908 (or 1952 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 46.

The spelling of 212443559056 in words is "two hundred twelve billion, four hundred forty-three million, five hundred fifty-nine thousand, fifty-six".