22531231126 has 4 divisors (see below), whose sum is σ = 33796846692. Its totient is φ = 11265615562.

The previous prime is 22531231123. The next prime is 22531231139. The reversal of 22531231126 is 62113213522.

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

It is a junction number, because it is equal to n+sod(n) for n = 22531231094 and 22531231103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22531231123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5632807780 + ... + 5632807783.

It is an arithmetic number, because the mean of its divisors is an integer number (8449211673).

Almost surely, 2^22531231126 is an apocalyptic number.

22531231126 is a deficient number, since it is larger than the sum of its proper divisors (11265615566).

22531231126 is a wasteful number, since it uses less digits than its factorization.

22531231126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11265615565.

The product of its digits is 4320, while the sum is 28.

Adding to 22531231126 its reverse (62113213522), we get a palindrome (84644444648).

The spelling of 22531231126 in words is "twenty-two billion, five hundred thirty-one million, two hundred thirty-one thousand, one hundred twenty-six".