22131112303544 has 32 divisors (see below), whose sum is σ = 41571323280000. Its totient is φ = 11045427785952.

The previous prime is 22131112303537. The next prime is 22131112303583. The reversal of 22131112303544 is 44530321113122.

It is a happy number.

It is a super-2 number, since 2×22131112303544² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22131112303544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120160277 + ... + 120344315.

It is an arithmetic number, because the mean of its divisors is an integer number (1299103852500).

Almost surely, 2^{22131112303544} is an apocalyptic number.

It is an amenable number.

22131112303544 is a deficient number, since it is larger than the sum of its proper divisors (19440210976456).

22131112303544 is a wasteful number, since it uses less digits than its factorization.

22131112303544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211307 (or 211303 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 22131112303544 its reverse (44530321113122), we get a palindrome (66661433416666).

The spelling of 22131112303544 in words is "twenty-two trillion, one hundred thirty-one billion, one hundred twelve million, three hundred three thousand, five hundred forty-four".