221660304514226 has 16 divisors (see below), whose sum is σ = 332756679892608. Its totient is φ = 110741415697200.

The previous prime is 221660304514199. The next prime is 221660304514247. The reversal of 221660304514226 is 622415403066122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99657416 + ... + 101857356.

It is an arithmetic number, because the mean of its divisors is an integer number (20797292493288).

Almost surely, 2^{221660304514226} is an apocalyptic number.

221660304514226 is a deficient number, since it is larger than the sum of its proper divisors (111096375378382).

221660304514226 is a wasteful number, since it uses less digits than its factorization.

221660304514226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240257.

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 221660304514226 in words is "two hundred twenty-one trillion, six hundred sixty billion, three hundred four million, five hundred fourteen thousand, two hundred twenty-six".