212443004310986 has 16 divisors (see below), whose sum is σ = 319887357985800. Its totient is φ = 105813979365888.

The previous prime is 212443004310983. The next prime is 212443004310991. The reversal of 212443004310986 is 689013400344212.

It can be written as a sum of positive squares in 4 ways, for example, as 206771314407025 + 5671689903961 = 14379545^2 + 2381531^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 212443004310986.

It is not an unprimeable number, because it can be changed into a prime (212443004310983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19089035 + ... + 28094078.

Almost surely, 2^{212443004310986} is an apocalyptic number.

212443004310986 is a deficient number, since it is larger than the sum of its proper divisors (107444353674814).

212443004310986 is a wasteful number, since it uses less digits than its factorization.

212443004310986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47191753.

The product of its (nonzero) digits is 995328, while the sum is 47.

The spelling of 212443004310986 in words is "two hundred twelve trillion, four hundred forty-three billion, four million, three hundred ten thousand, nine hundred eighty-six".