221647007164211 has 8 divisors (see below), whose sum is σ = 224957382299904. Its totient is φ = 218336697053640.

The previous prime is 221647007164169. The next prime is 221647007164213. The reversal of 221647007164211 is 112461700746122.

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 221647007164211 - 2¹⁴ = 221647007147827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221647007164213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9366455 + ... + 23043968.

It is an arithmetic number, because the mean of its divisors is an integer number (28119672787488).

Almost surely, 2^{221647007164211} is an apocalyptic number.

221647007164211 is a deficient number, since it is larger than the sum of its proper divisors (3310375135693).

221647007164211 is a wasteful number, since it uses less digits than its factorization.

221647007164211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32512561.

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 221647007164211 in words is "two hundred twenty-one trillion, six hundred forty-seven billion, seven million, one hundred sixty-four thousand, two hundred eleven".