22131102115201 has 4 divisors (see below), whose sum is σ = 22131134948692. Its totient is φ = 22131069281712.

The previous prime is 22131102115141. The next prime is 22131102115271. The reversal of 22131102115201 is 10251120113122.

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 13195426767601 + 8935675347600 = 3632551^2 + 2989260^2 .

It is a cyclic number.

It is not a de Polignac number, because 22131102115201 - 2³³ = 22122512180609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22131102115271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15384030 + ... + 16760983.

It is an arithmetic number, because the mean of its divisors is an integer number (5532783737173).

Almost surely, 2^{22131102115201} is an apocalyptic number.

It is an amenable number.

22131102115201 is a deficient number, since it is larger than the sum of its proper divisors (32833491).

22131102115201 is an equidigital number, since it uses as much as digits as its factorization.

22131102115201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32833490.

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 22131102115201 its reverse (10251120113122), we get a palindrome (32382222228323).

The spelling of 22131102115201 in words is "twenty-two trillion, one hundred thirty-one billion, one hundred two million, one hundred fifteen thousand, two hundred one".