22131112303444 has 24 divisors (see below), whose sum is σ = 38890640083680. Its totient is φ = 11019565859616.

The previous prime is 22131112303393. The next prime is 22131112303453. The reversal of 22131112303444 is 44430321113122.

It is a happy number.

It is a super-2 number, since 2×22131112303444² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6763522 + ... + 9487225.

It is an arithmetic number, because the mean of its divisors is an integer number (1620443336820).

Almost surely, 2^{22131112303444} is an apocalyptic number.

It is an amenable number.

22131112303444 is a deficient number, since it is larger than the sum of its proper divisors (16759527780236).

22131112303444 is a wasteful number, since it uses less digits than its factorization.

22131112303444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16252167 (or 16252165 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 22131112303444 its reverse (44430321113122), we get a palindrome (66561433416566).

The spelling of 22131112303444 in words is "twenty-two trillion, one hundred thirty-one billion, one hundred twelve million, three hundred three thousand, four hundred forty-four".