22515022241 has 8 divisors (see below), whose sum is σ = 23960451240. Its totient is φ = 21083039488.

The previous prime is 22515022237. The next prime is 22515022261. The reversal of 22515022241 is 14222051522.

It can be written as a sum of positive squares in 4 ways, for example, as 10464471616 + 12050550625 = 102296^2 + 109775^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22515022241 - 2² = 22515022237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22515022241.

It is not an unprimeable number, because it can be changed into a prime (22515022261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3358106 + ... + 3364803.

It is an arithmetic number, because the mean of its divisors is an integer number (2995056405).

Almost surely, 2^22515022241 is an apocalyptic number.

It is an amenable number.

22515022241 is a deficient number, since it is larger than the sum of its proper divisors (1445428999).

22515022241 is a wasteful number, since it uses less digits than its factorization.

22515022241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6723123.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 22515022241 its reverse (14222051522), we get a palindrome (36737073763).

The spelling of 22515022241 in words is "twenty-two billion, five hundred fifteen million, twenty-two thousand, two hundred forty-one".