1722110201201 has 4 divisors (see below), whose sum is σ = 1854580216692. Its totient is φ = 1589640185712.

The previous prime is 1722110201143. The next prime is 1722110201233. The reversal of 1722110201201 is 1021020112271.

It is a happy number.

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 1133268831601 + 588841369600 = 1064551^2 + 767360^2 .

It is a cyclic number.

It is not a de Polignac number, because 1722110201201 - 2³⁸ = 1447232294257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1722110201701) 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, 66235007726 + ... + 66235007751.

It is an arithmetic number, because the mean of its divisors is an integer number (463645054173).

Almost surely, 2^{1722110201201} is an apocalyptic number.

It is an amenable number.

1722110201201 is a deficient number, since it is larger than the sum of its proper divisors (132470015491).

1722110201201 is a wasteful number, since it uses less digits than its factorization.

1722110201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132470015490.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 1722110201201 its reverse (1021020112271), we get a palindrome (2743130313472).

The spelling of 1722110201201 in words is "one trillion, seven hundred twenty-two billion, one hundred ten million, two hundred one thousand, two hundred one".