172225237101 has 16 divisors (see below), whose sum is σ = 239632712064. Its totient is φ = 109817918144.

The previous prime is 172225237087. The next prime is 172225237153. The reversal of 172225237101 is 101732522271.

It is a cyclic number.

It is not a de Polignac number, because 172225237101 - 2¹⁰ = 172225236077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172225237201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1178275 + ... + 1316351.

It is an arithmetic number, because the mean of its divisors is an integer number (14977044504).

Almost surely, 2^172225237101 is an apocalyptic number.

It is an amenable number.

172225237101 is a deficient number, since it is larger than the sum of its proper divisors (67407474963).

172225237101 is a wasteful number, since it uses less digits than its factorization.

172225237101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156180.

The product of its (nonzero) digits is 11760, while the sum is 33.

Adding to 172225237101 its reverse (101732522271), we get a palindrome (273957759372).

The spelling of 172225237101 in words is "one hundred seventy-two billion, two hundred twenty-five million, two hundred thirty-seven thousand, one hundred one".