22055443442 has 16 divisors (see below), whose sum is σ = 35975971800. Its totient is φ = 10098517248.

The previous prime is 22055443439. The next prime is 22055443463. The reversal of 22055443442 is 24434455022.

It can be written as a sum of positive squares in 4 ways, for example, as 21467817361 + 587626081 = 146519^2 + 24241^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8764817 + ... + 8767332.

Almost surely, 2^22055443442 is an apocalyptic number.

22055443442 is a deficient number, since it is larger than the sum of its proper divisors (13920528358).

22055443442 is a wasteful number, since it uses less digits than its factorization.

22055443442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17532205.

The product of its (nonzero) digits is 153600, while the sum is 35.

Adding to 22055443442 its reverse (24434455022), we get a palindrome (46489898464).

The spelling of 22055443442 in words is "twenty-two billion, fifty-five million, four hundred forty-three thousand, four hundred forty-two".