212144340434 has 8 divisors (see below), whose sum is σ = 342694703820. Its totient is φ = 97912772496.

The previous prime is 212144340403. The next prime is 212144340449. The reversal of 212144340434 is 434043441212.

It can be written as a sum of positive squares in 2 ways, for example, as 204996145225 + 7148195209 = 452765^2 + 84547^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 212144340434.

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, 4079698829 + ... + 4079698880.

Almost surely, 2^212144340434 is an apocalyptic number.

212144340434 is a deficient number, since it is larger than the sum of its proper divisors (130550363386).

212144340434 is a wasteful number, since it uses less digits than its factorization.

212144340434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8159397724.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 212144340434 its reverse (434043441212), we get a palindrome (646187781646).

The spelling of 212144340434 in words is "two hundred twelve billion, one hundred forty-four million, three hundred forty thousand, four hundred thirty-four".