22515351242 has 8 divisors (see below), whose sum is σ = 35759675556. Its totient is φ = 10595459392.

The previous prime is 22515351223. The next prime is 22515351251. The reversal of 22515351242 is 24215351522.

It can be written as a sum of positive squares in 2 ways, for example, as 18947797801 + 3567553441 = 137651^2 + 59729^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22515351199 and 22515351208.

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 in 3 ways as a sum of consecutive naturals, for example, 331108073 + ... + 331108140.

Almost surely, 2^22515351242 is an apocalyptic number.

22515351242 is a deficient number, since it is larger than the sum of its proper divisors (13244324314).

22515351242 is a wasteful number, since it uses less digits than its factorization.

22515351242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662216232.

The product of its digits is 24000, while the sum is 32.

The spelling of 22515351242 in words is "twenty-two billion, five hundred fifteen million, three hundred fifty-one thousand, two hundred forty-two".