22523100444001 has 4 divisors (see below), whose sum is σ = 22523119028932. Its totient is φ = 22523081859072.

The previous prime is 22523100443999. The next prime is 22523100444011. The reversal of 22523100444001 is 10044400132522.

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 7166114841600 + 15356985602401 = 2676960^2 + 3918799^2 .

It is a cyclic number.

It is not a de Polignac number, because 22523100444001 - 2¹ = 22523100443999 is a prime.

It is a super-2 number, since 2×22523100444001² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22523100444011) 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, 7337520 + ... + 9944113.

It is an arithmetic number, because the mean of its divisors is an integer number (5630779757233).

Almost surely, 2^{22523100444001} is an apocalyptic number.

It is an amenable number.

22523100444001 is a deficient number, since it is larger than the sum of its proper divisors (18584931).

22523100444001 is a wasteful number, since it uses less digits than its factorization.

22523100444001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18584930.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 22523100444001 its reverse (10044400132522), we get a palindrome (32567500576523).

The spelling of 22523100444001 in words is "twenty-two trillion, five hundred twenty-three billion, one hundred million, four hundred forty-four thousand, one".