221336474434 has 8 divisors (see below), whose sum is σ = 337447412028. Its totient is φ = 108854003760.

The previous prime is 221336474399. The next prime is 221336474473. The reversal of 221336474434 is 434474633122.

It can be written as a sum of positive squares in 2 ways, for example, as 220876500625 + 459973809 = 469975^2 + 21447^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 907116577 + ... + 907116820.

Almost surely, 2^221336474434 is an apocalyptic number.

221336474434 is a deficient number, since it is larger than the sum of its proper divisors (116110937594).

221336474434 is a wasteful number, since it uses less digits than its factorization.

221336474434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814233460.

The product of its digits is 1161216, while the sum is 43.

The spelling of 221336474434 in words is "two hundred twenty-one billion, three hundred thirty-six million, four hundred seventy-four thousand, four hundred thirty-four".