22521114461 has 4 divisors (see below), whose sum is σ = 22727730300. Its totient is φ = 22314498624.

The previous prime is 22521114443. The next prime is 22521114481. The reversal of 22521114461 is 16441112522.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15742720900 + 6778393561 = 125470^2 + 82331^2 .

It is a cyclic number.

It is not a de Polignac number, because 22521114461 - 2¹⁰ = 22521113437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22521114481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103307756 + ... + 103307973.

It is an arithmetic number, because the mean of its divisors is an integer number (5681932575).

Almost surely, 2^22521114461 is an apocalyptic number.

It is an amenable number.

22521114461 is a deficient number, since it is larger than the sum of its proper divisors (206615839).

22521114461 is a wasteful number, since it uses less digits than its factorization.

22521114461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206615838.

The product of its digits is 3840, while the sum is 29.

Adding to 22521114461 its reverse (16441112522), we get a palindrome (38962226983).

The spelling of 22521114461 in words is "twenty-two billion, five hundred twenty-one million, one hundred fourteen thousand, four hundred sixty-one".