22025347042 has 4 divisors (see below), whose sum is σ = 33038020566. Its totient is φ = 11012673520.

The previous prime is 22025347027. The next prime is 22025347079. The reversal of 22025347042 is 24074352022.

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., 21603414361 + 421932681 = 146981^2 + 20541^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 22025346995 and 22025347013.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506336759 + ... + 5506336762.

Almost surely, 2^22025347042 is an apocalyptic number.

22025347042 is a deficient number, since it is larger than the sum of its proper divisors (11012673524).

22025347042 is a wasteful number, since it uses less digits than its factorization.

22025347042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11012673523.

The product of its (nonzero) digits is 26880, while the sum is 31.

Adding to 22025347042 its reverse (24074352022), we get a palindrome (46099699064).

The spelling of 22025347042 in words is "twenty-two billion, twenty-five million, three hundred forty-seven thousand, forty-two".