22231152444444 has 24 divisors (see below), whose sum is σ = 51877431338880. Its totient is φ = 7409706676464.

The previous prime is 22231152444443. The next prime is 22231152444469. The reversal of 22231152444444 is 44444425113222.

It is a junction number, because it is equal to n+sod(n) for n = 22231152444396 and 22231152444405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22231152444443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84547224 + ... + 84809759.

It is an arithmetic number, because the mean of its divisors is an integer number (2161559639120).

Almost surely, 2^{22231152444444} is an apocalyptic number.

It is an amenable number.

22231152444444 is an abundant number, since it is smaller than the sum of its proper divisors (29646278894436).

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

22231152444444 is a wasteful number, since it uses less digits than its factorization.

22231152444444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169367929 (or 169367927 counting only the distinct ones).

The product of its digits is 983040, while the sum is 42.

Adding to 22231152444444 its reverse (44444425113222), we get a palindrome (66675577557666).

The spelling of 22231152444444 in words is "twenty-two trillion, two hundred thirty-one billion, one hundred fifty-two million, four hundred forty-four thousand, four hundred forty-four".