1222220102177 has 2 divisors, whose sum is σ = 1222220102178. Its totient is φ = 1222220102176.

The previous prime is 1222220102123. The next prime is 1222220102221. The reversal of 1222220102177 is 7712010222221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 636874225936 + 585345876241 = 798044^2 + 765079^2 .

It is an emirp because it is prime and its reverse (7712010222221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1222220102177 - 2¹² = 1222220098081 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222220102777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611110051088 + 611110051089.

It is an arithmetic number, because the mean of its divisors is an integer number (611110051089).

Almost surely, 2^{1222220102177} is an apocalyptic number.

It is an amenable number.

1222220102177 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222220102177 is an equidigital number, since it uses as much as digits as its factorization.

1222220102177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136, while the sum is 29.

Adding to 1222220102177 its reverse (7712010222221), we get a palindrome (8934230324398).

The spelling of 1222220102177 in words is "one trillion, two hundred twenty-two billion, two hundred twenty million, one hundred two thousand, one hundred seventy-seven".