220101102173 has 2 divisors, whose sum is σ = 220101102174. Its totient is φ = 220101102172.

The previous prime is 220101102167. The next prime is 220101102211. The reversal of 220101102173 is 371201101022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214144041049 + 5957061124 = 462757^2 + 77182^2 .

It is a cyclic number.

It is not a de Polignac number, because 220101102173 - 2⁴ = 220101102157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220101102113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110050551086 + 110050551087.

It is an arithmetic number, because the mean of its divisors is an integer number (110050551087).

Almost surely, 2^220101102173 is an apocalyptic number.

It is an amenable number.

220101102173 is a deficient number, since it is larger than the sum of its proper divisors (1).

220101102173 is an equidigital number, since it uses as much as digits as its factorization.

220101102173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 220101102173 its reverse (371201101022), we get a palindrome (591302203195).

The spelling of 220101102173 in words is "two hundred twenty billion, one hundred one million, one hundred two thousand, one hundred seventy-three".