1210222101173 has 2 divisors, whose sum is σ = 1210222101174. Its totient is φ = 1210222101172.

The previous prime is 1210222101167. The next prime is 1210222101229. The reversal of 1210222101173 is 3711012220121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 987006484324 + 223215616849 = 993482^2 + 472457^2 .

It is an emirp because it is prime and its reverse (3711012220121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1210222101173 - 2¹⁰ = 1210222100149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210222101113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605111050586 + 605111050587.

It is an arithmetic number, because the mean of its divisors is an integer number (605111050587).

Almost surely, 2^{1210222101173} is an apocalyptic number.

It is an amenable number.

1210222101173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210222101173 is an equidigital number, since it uses as much as digits as its factorization.

1210222101173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 1210222101173 its reverse (3711012220121), we get a palindrome (4921234321294).

The spelling of 1210222101173 in words is "one trillion, two hundred ten billion, two hundred twenty-two million, one hundred one thousand, one hundred seventy-three".