22042242422 has 4 divisors (see below), whose sum is σ = 33063363636. Its totient is φ = 11021121210.

The previous prime is 22042242379. The next prime is 22042242463. The reversal of 22042242422 is 22424224022.

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

It is a junction number, because it is equal to n+sod(n) for n = 22042242391 and 22042242400.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 5510560604 + ... + 5510560607.

It is an arithmetic number, because the mean of its divisors is an integer number (8265840909).

Almost surely, 2^22042242422 is an apocalyptic number.

22042242422 is a deficient number, since it is larger than the sum of its proper divisors (11021121214).

22042242422 is a wasteful number, since it uses less digits than its factorization.

22042242422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11021121213.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 22042242422 its reverse (22424224022), we get a palindrome (44466466444).

The spelling of 22042242422 in words is "twenty-two billion, forty-two million, two hundred forty-two thousand, four hundred twenty-two".