22145125213 has 8 divisors (see below), whose sum is σ = 23112460800. Its totient is φ = 21178165008.

The previous prime is 22145125207. The next prime is 22145125217. The reversal of 22145125213 is 31252154122.

It is a happy number.

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 22145125213 - 2⁵ = 22145125181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22145125217) 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, 30223 + ... + 212611.

It is an arithmetic number, because the mean of its divisors is an integer number (2889057600).

Almost surely, 2^22145125213 is an apocalyptic number.

22145125213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

22145125213 is a deficient number, since it is larger than the sum of its proper divisors (967335587).

22145125213 is a wasteful number, since it uses less digits than its factorization.

22145125213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187691.

The product of its digits is 4800, while the sum is 28.

Adding to 22145125213 its reverse (31252154122), we get a palindrome (53397279335).

The spelling of 22145125213 in words is "twenty-two billion, one hundred forty-five million, one hundred twenty-five thousand, two hundred thirteen".