172443142222 has 32 divisors (see below), whose sum is σ = 286192714752. Its totient is φ = 77429223264.

The previous prime is 172443142171. The next prime is 172443142231. The reversal of 172443142222 is 222241344271.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218428 + ... + 626575.

It is an arithmetic number, because the mean of its divisors is an integer number (8943522336).

Almost surely, 2^172443142222 is an apocalyptic number.

172443142222 is a deficient number, since it is larger than the sum of its proper divisors (113749572530).

172443142222 is a wasteful number, since it uses less digits than its factorization.

172443142222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845232.

The product of its digits is 43008, while the sum is 34.

Adding to 172443142222 its reverse (222241344271), we get a palindrome (394684486493).

The spelling of 172443142222 in words is "one hundred seventy-two billion, four hundred forty-three million, one hundred forty-two thousand, two hundred twenty-two".