22440220042 has 16 divisors (see below), whose sum is σ = 34254784512. Its totient is φ = 11023674480.

The previous prime is 22440220007. The next prime is 22440220057. The reversal of 22440220042 is 24002204422.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22440219995 and 22440220022.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402709 + ... + 455032.

It is an arithmetic number, because the mean of its divisors is an integer number (2140924032).

Almost surely, 2^22440220042 is an apocalyptic number.

22440220042 is a deficient number, since it is larger than the sum of its proper divisors (11814564470).

22440220042 is a wasteful number, since it uses less digits than its factorization.

22440220042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857973.

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 22440220042 its reverse (24002204422), we get a palindrome (46442424464).

The spelling of 22440220042 in words is "twenty-two billion, four hundred forty million, two hundred twenty thousand, forty-two".