212041886305 has 4 divisors (see below), whose sum is σ = 254450263572. Its totient is φ = 169633509040.

The previous prime is 212041886299. The next prime is 212041886323. The reversal of 212041886305 is 503688140212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 139064105569 + 72977780736 = 372913^2 + 270144^2 .

It is not a de Polignac number, because 212041886305 - 2³ = 212041886297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21204188626 + ... + 21204188635.

It is an arithmetic number, because the mean of its divisors is an integer number (63612565893).

Almost surely, 2^212041886305 is an apocalyptic number.

It is an amenable number.

212041886305 is a deficient number, since it is larger than the sum of its proper divisors (42408377267).

212041886305 is an equidigital number, since it uses as much as digits as its factorization.

212041886305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42408377266.

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 212041886305 in words is "two hundred twelve billion, forty-one million, eight hundred eighty-six thousand, three hundred five".