22123112143244 has 18 divisors (see below), whose sum is σ = 45036335434860. Its totient is φ = 9481333775592.

The previous prime is 22123112143243. The next prime is 22123112143259. The reversal of 22123112143244 is 44234121132122.

It is a self number, because there is not a number n which added to its sum of digits gives 22123112143244.

It is not an unprimeable number, because it can be changed into a prime (22123112143243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56436510374 + ... + 56436510765.

It is an arithmetic number, because the mean of its divisors is an integer number (2502018635270).

Almost surely, 2^{22123112143244} is an apocalyptic number.

It is an amenable number.

22123112143244 is an abundant number, since it is smaller than the sum of its proper divisors (22913223291616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22123112143244 is a wasteful number, since it uses less digits than its factorization.

22123112143244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112873021157 (or 112873021148 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

Adding to 22123112143244 its reverse (44234121132122), we get a palindrome (66357233275366).

The spelling of 22123112143244 in words is "twenty-two trillion, one hundred twenty-three billion, one hundred twelve million, one hundred forty-three thousand, two hundred forty-four".