22152554430044 has 12 divisors (see below), whose sum is σ = 38770124946000. Its totient is φ = 11075375874048.

The previous prime is 22152554430001. The next prime is 22152554430053. The reversal of 22152554430044 is 44003445525122.

It is a junction number, because it is equal to n+sod(n) for n = 22152554429983 and 22152554430010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225279944 + ... + 225378255.

It is an arithmetic number, because the mean of its divisors is an integer number (3230843745500).

Almost surely, 2^{22152554430044} is an apocalyptic number.

It is an amenable number.

22152554430044 is a deficient number, since it is larger than the sum of its proper divisors (16617570515956).

22152554430044 is a wasteful number, since it uses less digits than its factorization.

22152554430044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450670492 (or 450670490 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 41.

Adding to 22152554430044 its reverse (44003445525122), we get a palindrome (66155999955166).

The spelling of 22152554430044 in words is "twenty-two trillion, one hundred fifty-two billion, five hundred fifty-four million, four hundred thirty thousand, forty-four".