172301144212 has 12 divisors (see below), whose sum is σ = 308881319796. Its totient is φ = 84049338560.

The previous prime is 172301144201. The next prime is 172301144219. The reversal of 172301144212 is 212441103271.

It can be written as a sum of positive squares in 2 ways, for example, as 20539475856 + 151761668356 = 143316^2 + 389566^2 .

It is a super-2 number, since 2×172301144212² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172301144219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525308203 + ... + 525308530.

It is an arithmetic number, because the mean of its divisors is an integer number (25740109983).

Almost surely, 2^172301144212 is an apocalyptic number.

It is an amenable number.

172301144212 is a deficient number, since it is larger than the sum of its proper divisors (136580175584).

172301144212 is a wasteful number, since it uses less digits than its factorization.

172301144212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050616778 (or 1050616776 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

Adding to 172301144212 its reverse (212441103271), we get a palindrome (384742247483).

The spelling of 172301144212 in words is "one hundred seventy-two billion, three hundred one million, one hundred forty-four thousand, two hundred twelve".