1630171225222 has 16 divisors (see below), whose sum is σ = 2591229438000. Its totient is φ = 767003908320.

The previous prime is 1630171225213. The next prime is 1630171225223. The reversal of 1630171225222 is 2225221710361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630171225223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143951529 + ... + 143962852.

It is an arithmetic number, because the mean of its divisors is an integer number (161951839875).

Almost surely, 2^{1630171225222} is an apocalyptic number.

1630171225222 is a deficient number, since it is larger than the sum of its proper divisors (961058212778).

1630171225222 is a wasteful number, since it uses less digits than its factorization.

1630171225222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287914551.

The product of its (nonzero) digits is 20160, while the sum is 34.

Adding to 1630171225222 its reverse (2225221710361), we get a palindrome (3855392935583).

The spelling of 1630171225222 in words is "one trillion, six hundred thirty billion, one hundred seventy-one million, two hundred twenty-five thousand, two hundred twenty-two".