22140321125 has 32 divisors (see below), whose sum is σ = 29887035360. Its totient is φ = 16278105600.

The previous prime is 22140321107. The next prime is 22140321167. The reversal of 22140321125 is 52112304122.

It can be written as a sum of positive squares in 16 ways, for example, as 13418442244 + 8721878881 = 115838^2 + 93391^2 .

It is not a de Polignac number, because 22140321125 - 2¹² = 22140317029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22140321125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 342377 + ... + 401873.

It is an arithmetic number, because the mean of its divisors is an integer number (933969855).

Almost surely, 2^22140321125 is an apocalyptic number.

22140321125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22140321125 is a deficient number, since it is larger than the sum of its proper divisors (7746714235).

22140321125 is a wasteful number, since it uses less digits than its factorization.

22140321125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59754 (or 59744 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 22140321125 its reverse (52112304122), we get a palindrome (74252625247).

The spelling of 22140321125 in words is "twenty-two billion, one hundred forty million, three hundred twenty-one thousand, one hundred twenty-five".