22005242042 has 16 divisors (see below), whose sum is σ = 39363414912. Its totient is φ = 9020782320.

The previous prime is 22005242023. The next prime is 22005242059. The reversal of 22005242042 is 24024250022.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 22005241999 and 22005242017.

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, 34169309 + ... + 34169952.

It is an arithmetic number, because the mean of its divisors is an integer number (2460213432).

Almost surely, 2^22005242042 is an apocalyptic number.

22005242042 is a deficient number, since it is larger than the sum of its proper divisors (17358172870).

22005242042 is a wasteful number, since it uses less digits than its factorization.

22005242042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68339293.

The product of its (nonzero) digits is 2560, while the sum is 23.

Adding to 22005242042 its reverse (24024250022), we get a palindrome (46029492064).

The spelling of 22005242042 in words is "twenty-two billion, five million, two hundred forty-two thousand, forty-two".