22021332240434 has 4 divisors (see below), whose sum is σ = 33031998360654. Its totient is φ = 11010666120216.

The previous prime is 22021332240367. The next prime is 22021332240443. The reversal of 22021332240434 is 43404223312022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22020729390625 + 602849809 = 4692625^2 + 24553^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22021332240434.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505333060107 + ... + 5505333060110.

Almost surely, 2^{22021332240434} is an apocalyptic number.

22021332240434 is a deficient number, since it is larger than the sum of its proper divisors (11010666120220).

22021332240434 is a wasteful number, since it uses less digits than its factorization.

22021332240434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11010666120219.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 22021332240434 its reverse (43404223312022), we get a palindrome (65425555552456).

The spelling of 22021332240434 in words is "twenty-two trillion, twenty-one billion, three hundred thirty-two million, two hundred forty thousand, four hundred thirty-four".