22501361444105 has 4 divisors (see below), whose sum is σ = 27001633732932. Its totient is φ = 18001089155280.

The previous prime is 22501361443879. The next prime is 22501361444117. The reversal of 22501361444105 is 50144416310522.

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 12404575572169 + 10096785871936 = 3522013^2 + 3177544^2 .

It is not a de Polignac number, because 22501361444105 - 2²² = 22501357249801 is a prime.

It is a super-2 number, since 2×22501361444105² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2250136144406 + ... + 2250136144415.

It is an arithmetic number, because the mean of its divisors is an integer number (6750408433233).

Almost surely, 2^{22501361444105} is an apocalyptic number.

It is an amenable number.

22501361444105 is a deficient number, since it is larger than the sum of its proper divisors (4500272288827).

22501361444105 is an equidigital number, since it uses as much as digits as its factorization.

22501361444105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4500272288826.

The product of its (nonzero) digits is 115200, while the sum is 38.

Adding to 22501361444105 its reverse (50144416310522), we get a palindrome (72645777754627).

The spelling of 22501361444105 in words is "twenty-two trillion, five hundred one billion, three hundred sixty-one million, four hundred forty-four thousand, one hundred five".