22012325231205 has 16 divisors (see below), whose sum is σ = 35220212081280. Its totient is φ = 11739742886208.

The previous prime is 22012325231201. The next prime is 22012325231243. The reversal of 22012325231205 is 50213252321022.

It is a happy number.

It is not a de Polignac number, because 22012325231205 - 2² = 22012325231201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012325231201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9129862 + ... + 11286231.

It is an arithmetic number, because the mean of its divisors is an integer number (2201263255080).

Almost surely, 2^{22012325231205} is an apocalyptic number.

It is an amenable number.

22012325231205 is a deficient number, since it is larger than the sum of its proper divisors (13207886850075).

22012325231205 is a wasteful number, since it uses less digits than its factorization.

22012325231205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20487980.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 22012325231205 its reverse (50213252321022), we get a palindrome (72225577552227).

The spelling of 22012325231205 in words is "twenty-two trillion, twelve billion, three hundred twenty-five million, two hundred thirty-one thousand, two hundred five".