22142250252 has 36 divisors (see below), whose sum is σ = 57483412896. Its totient is φ = 7181269920.

The previous prime is 22142250227. The next prime is 22142250257. The reversal of 22142250252 is 25205224122.

It is a happy number.

22142250252 is a `hidden beast` number, since 22 + 142 + 250 + 252 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (22142250257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8310324 + ... + 8312987.

Almost surely, 2^22142250252 is an apocalyptic number.

It is an amenable number.

22142250252 is an abundant number, since it is smaller than the sum of its proper divisors (35341162644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22142250252 is a wasteful number, since it uses less digits than its factorization.

22142250252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16623358 (or 16623353 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

Adding to 22142250252 its reverse (25205224122), we get a palindrome (47347474374).

The spelling of 22142250252 in words is "twenty-two billion, one hundred forty-two million, two hundred fifty thousand, two hundred fifty-two".