22131102444443 has 4 divisors (see below), whose sum is σ = 23295897309960. Its totient is φ = 20966307578928.

The previous prime is 22131102444413. The next prime is 22131102444449. The reversal of 22131102444443 is 34444420113122.

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

It is a cyclic number.

It is not a de Polignac number, because 22131102444443 - 2⁶ = 22131102444379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22131102444449) 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, 582397432730 + ... + 582397432767.

It is an arithmetic number, because the mean of its divisors is an integer number (5823974327490).

Almost surely, 2^{22131102444443} is an apocalyptic number.

22131102444443 is a deficient number, since it is larger than the sum of its proper divisors (1164794865517).

22131102444443 is a wasteful number, since it uses less digits than its factorization.

22131102444443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164794865516.

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 22131102444443 its reverse (34444420113122), we get a palindrome (56575522557565).

The spelling of 22131102444443 in words is "twenty-two trillion, one hundred thirty-one billion, one hundred two million, four hundred forty-four thousand, four hundred forty-three".