22013324442 has 12 divisors (see below), whose sum is σ = 47695536330. Its totient is φ = 7337774808.

The previous prime is 22013324419. The next prime is 22013324461. The reversal of 22013324442 is 24442331022.

It can be written as a sum of positive squares in only one way, i.e., 21185093601 + 828230841 = 145551^2 + 28779^2 .

It is a super-2 number, since 2×22013324442² (a number of 21 digits) contains 22 as substring.

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 in 5 ways as a sum of consecutive naturals, for example, 611481217 + ... + 611481252.

Almost surely, 2^22013324442 is an apocalyptic number.

22013324442 is an abundant number, since it is smaller than the sum of its proper divisors (25682211888).

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

22013324442 is a wasteful number, since it uses less digits than its factorization.

22013324442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222962477 (or 1222962474 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 22013324442 its reverse (24442331022), we get a palindrome (46455655464).

The spelling of 22013324442 in words is "twenty-two billion, thirteen million, three hundred twenty-four thousand, four hundred forty-two".