13212210173 has 2 divisors, whose sum is σ = 13212210174. Its totient is φ = 13212210172.

The previous prime is 13212210169. The next prime is 13212210181. The reversal of 13212210173 is 37101221231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12751378084 + 460832089 = 112922^2 + 21467^2 .

It is a cyclic number.

It is not a de Polignac number, because 13212210173 - 2² = 13212210169 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13212215173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6606105086 + 6606105087.

It is an arithmetic number, because the mean of its divisors is an integer number (6606105087).

Almost surely, 2^13212210173 is an apocalyptic number.

It is an amenable number.

13212210173 is a deficient number, since it is larger than the sum of its proper divisors (1).

13212210173 is an equidigital number, since it uses as much as digits as its factorization.

13212210173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The spelling of 13212210173 in words is "thirteen billion, two hundred twelve million, two hundred ten thousand, one hundred seventy-three".