22043204204242 has 16 divisors (see below), whose sum is σ = 35608821436440. Its totient is φ = 10173624129792.

The previous prime is 22043204204183. The next prime is 22043204204243. The reversal of 22043204204242 is 24240240234022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21210805259361 + 832398944881 = 4605519^2 + 912359^2 .

It is not an unprimeable number, because it can be changed into a prime (22043204204243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5100133 + ... + 8372440.

Almost surely, 2^{22043204204242} is an apocalyptic number.

22043204204242 is a deficient number, since it is larger than the sum of its proper divisors (13565617232198).

22043204204242 is a wasteful number, since it uses less digits than its factorization.

22043204204242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13535517.

The product of its (nonzero) digits is 49152, while the sum is 31.

Adding to 22043204204242 its reverse (24240240234022), we get a palindrome (46283444438264).

The spelling of 22043204204242 in words is "twenty-two trillion, forty-three billion, two hundred four million, two hundred four thousand, two hundred forty-two".