221710225157201 has 8 divisors (see below), whose sum is σ = 243605741181600. Its totient is φ = 200104715967840.

The previous prime is 221710225157153. The next prime is 221710225157203. The reversal of 221710225157201 is 102751522017122.

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

It is a cyclic number.

It is not a de Polignac number, because 221710225157201 - 2¹⁰ = 221710225156177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221710225157203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72501707156 + ... + 72501710213.

It is an arithmetic number, because the mean of its divisors is an integer number (30450717647700).

Almost surely, 2^{221710225157201} is an apocalyptic number.

It is an amenable number.

221710225157201 is a deficient number, since it is larger than the sum of its proper divisors (21895516024399).

221710225157201 is a wasteful number, since it uses less digits than its factorization.

221710225157201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145003417519.

The product of its (nonzero) digits is 39200, while the sum is 38.

The spelling of 221710225157201 in words is "two hundred twenty-one trillion, seven hundred ten billion, two hundred twenty-five million, one hundred fifty-seven thousand, two hundred one".