22521243123 has 12 divisors (see below), whose sum is σ = 32641714560. Its totient is φ = 14962917456.

The previous prime is 22521243091. The next prime is 22521243137. The reversal of 22521243123 is 32134212522.

22521243123 is a `hidden beast` number, since 225 + 2 + 1 + 2 + 431 + 2 + 3 = 666.

It is not a de Polignac number, because 22521243123 - 2⁵ = 22521243091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22521243223) 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 11 ways as a sum of consecutive naturals, for example, 4267603 + ... + 4272876.

It is an arithmetic number, because the mean of its divisors is an integer number (2720142880).

Almost surely, 2^22521243123 is an apocalyptic number.

22521243123 is a deficient number, since it is larger than the sum of its proper divisors (10120471437).

22521243123 is a wasteful number, since it uses less digits than its factorization.

22521243123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8540778 (or 8540775 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

Adding to 22521243123 its reverse (32134212522), we get a palindrome (54655455645).

The spelling of 22521243123 in words is "twenty-two billion, five hundred twenty-one million, two hundred forty-three thousand, one hundred twenty-three".