2128170032201 has 2 divisors, whose sum is σ = 2128170032202. Its totient is φ = 2128170032200.

The previous prime is 2128170032129. The next prime is 2128170032227. The reversal of 2128170032201 is 1022300718212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1767041148601 + 361128883600 = 1329301^2 + 600940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2128170032201 is a prime.

It is not a weakly prime, because it can be changed into another prime (2128170032101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064085016100 + 1064085016101.

It is an arithmetic number, because the mean of its divisors is an integer number (1064085016101).

Almost surely, 2^{2128170032201} is an apocalyptic number.

It is an amenable number.

2128170032201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2128170032201 is an equidigital number, since it uses as much as digits as its factorization.

2128170032201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 29.

The spelling of 2128170032201 in words is "two trillion, one hundred twenty-eight billion, one hundred seventy million, thirty-two thousand, two hundred one".