221768676098 has 6 divisors (see below), whose sum is σ = 332654013129. Its totient is φ = 110884005056.

The previous prime is 221768676089. The next prime is 221768676121. The reversal of 221768676098 is 890676867122.

It can be written as a sum of positive squares in 2 ways, for example, as 117030357409 + 104738318689 = 342097^2 + 323633^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=332993.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221768676098.

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 2 ways as a sum of consecutive naturals, for example, 499490 + ... + 832482.

Almost surely, 2^221768676098 is an apocalyptic number.

221768676098 is a deficient number, since it is larger than the sum of its proper divisors (110885337031).

221768676098 is an frugal number, since it uses more digits than its factorization.

221768676098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665988 (or 332995 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 62.

The spelling of 221768676098 in words is "two hundred twenty-one billion, seven hundred sixty-eight million, six hundred seventy-six thousand, ninety-eight".