22002040042 has 4 divisors (see below), whose sum is σ = 33003060066. Its totient is φ = 11001020020.

The previous prime is 22002040031. The next prime is 22002040063. The reversal of 22002040042 is 24004020022.

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., 21723517321 + 278522721 = 147389^2 + 16689^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22002039998 and 22002040025.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500510009 + ... + 5500510012.

Almost surely, 2^22002040042 is an apocalyptic number.

22002040042 is a deficient number, since it is larger than the sum of its proper divisors (11001020024).

22002040042 is a wasteful number, since it uses less digits than its factorization.

22002040042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11001020023.

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 22002040042 its reverse (24004020022), we get a palindrome (46006060064).

It can be divided in two parts, 220020 and 40042, that added together give a palindrome (260062).

The spelling of 22002040042 in words is "twenty-two billion, two million, forty thousand, forty-two".