221336720871101 has 16 divisors (see below), whose sum is σ = 254874554380800. Its totient is φ = 190093938346800.

The previous prime is 221336720871089. The next prime is 221336720871157. The reversal of 221336720871101 is 101178027633122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221336720871101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221336720871601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1474893455 + ... + 1475043516.

It is an arithmetic number, because the mean of its divisors is an integer number (15929659648800).

Almost surely, 2^{221336720871101} is an apocalyptic number.

It is an amenable number.

221336720871101 is a deficient number, since it is larger than the sum of its proper divisors (33537833509699).

221336720871101 is a wasteful number, since it uses less digits than its factorization.

221336720871101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949937360.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 221336720871101 in words is "two hundred twenty-one trillion, three hundred thirty-six billion, seven hundred twenty million, eight hundred seventy-one thousand, one hundred one".