222168716834 has 4 divisors (see below), whose sum is σ = 333253075254. Its totient is φ = 111084358416.

The previous prime is 222168716797. The next prime is 222168716837. The reversal of 222168716834 is 438617861222.

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

It can be written as a sum of positive squares in only one way, i.e., 207158791609 + 15009925225 = 455147^2 + 122515^2 .

It is not an unprimeable number, because it can be changed into a prime (222168716837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55542179207 + ... + 55542179210.

Almost surely, 2^222168716834 is an apocalyptic number.

222168716834 is a deficient number, since it is larger than the sum of its proper divisors (111084358420).

222168716834 is a wasteful number, since it uses less digits than its factorization.

222168716834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111084358419.

The product of its digits is 1548288, while the sum is 50.

The spelling of 222168716834 in words is "two hundred twenty-two billion, one hundred sixty-eight million, seven hundred sixteen thousand, eight hundred thirty-four".