172322132211101 has 4 divisors (see below), whose sum is σ = 174258335943900. Its totient is φ = 170385928478304.

The previous prime is 172322132211007. The next prime is 172322132211181. The reversal of 172322132211101 is 101112231223271.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 104793609765625 + 67528522445476 = 10236875^2 + 8217574^2 .

It is a cyclic number.

It is not a de Polignac number, because 172322132211101 - 2³⁴ = 172304952341917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172322132211181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 968101866266 + ... + 968101866443.

It is an arithmetic number, because the mean of its divisors is an integer number (43564583985975).

Almost surely, 2^{172322132211101} is an apocalyptic number.

It is an amenable number.

172322132211101 is a deficient number, since it is larger than the sum of its proper divisors (1936203732799).

172322132211101 is an equidigital number, since it uses as much as digits as its factorization.

172322132211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936203732798.

The product of its (nonzero) digits is 2016, while the sum is 29.

Adding to 172322132211101 its reverse (101112231223271), we get a palindrome (273434363434372).

The spelling of 172322132211101 in words is "one hundred seventy-two trillion, three hundred twenty-two billion, one hundred thirty-two million, two hundred eleven thousand, one hundred one".