212200221199177 has 2 divisors, whose sum is σ = 212200221199178. Its totient is φ = 212200221199176.

The previous prime is 212200221199139. The next prime is 212200221199199. The reversal of 212200221199177 is 771991122002212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138443368310416 + 73756852888761 = 11766196^2 + 8588181^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212200221199177 is a prime.

It is not a weakly prime, because it can be changed into another prime (212200221199277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106100110599588 + 106100110599589.

It is an arithmetic number, because the mean of its divisors is an integer number (106100110599589).

Almost surely, 2^{212200221199177} is an apocalyptic number.

It is an amenable number.

212200221199177 is a deficient number, since it is larger than the sum of its proper divisors (1).

212200221199177 is an equidigital number, since it uses as much as digits as its factorization.

212200221199177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 46.

The spelling of 212200221199177 in words is "two hundred twelve trillion, two hundred billion, two hundred twenty-one million, one hundred ninety-nine thousand, one hundred seventy-seven".