22013243444 has 6 divisors (see below), whose sum is σ = 38523176034. Its totient is φ = 11006621720.

The previous prime is 22013243431. The next prime is 22013243467. The reversal of 22013243444 is 44434231022.

It can be written as a sum of positive squares in only one way, i.e., 21723222544 + 290020900 = 147388^2 + 17030^2 .

It is a super-2 number, since 2×22013243444² (a number of 21 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 (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2751655427 + ... + 2751655434.

It is an arithmetic number, because the mean of its divisors is an integer number (6420529339).

Almost surely, 2^22013243444 is an apocalyptic number.

It is an amenable number.

22013243444 is a deficient number, since it is larger than the sum of its proper divisors (16509932590).

22013243444 is a wasteful number, since it uses less digits than its factorization.

22013243444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5503310865 (or 5503310863 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 22013243444 its reverse (44434231022), we get a palindrome (66447474466).

The spelling of 22013243444 in words is "twenty-two billion, thirteen million, two hundred forty-three thousand, four hundred forty-four".