2216021534161 has 2 divisors, whose sum is σ = 2216021534162. Its totient is φ = 2216021534160.

The previous prime is 2216021534141. The next prime is 2216021534267. The reversal of 2216021534161 is 1614351206122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1250469643536 + 965551890625 = 1118244^2 + 982625^2 .

It is a cyclic number.

It is not a de Polignac number, because 2216021534161 - 2³⁵ = 2181661795793 is a prime.

It is not a weakly prime, because it can be changed into another prime (2216021534141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108010767080 + 1108010767081.

It is an arithmetic number, because the mean of its divisors is an integer number (1108010767081).

Almost surely, 2^{2216021534161} is an apocalyptic number.

It is an amenable number.

2216021534161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2216021534161 is an equidigital number, since it uses as much as digits as its factorization.

2216021534161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 2216021534161 in words is "two trillion, two hundred sixteen billion, twenty-one million, five hundred thirty-four thousand, one hundred sixty-one".