22120005252 has 24 divisors (see below), whose sum is σ = 52086865600. Its totient is φ = 7305689376.

The previous prime is 22120005191. The next prime is 22120005269. The reversal of 22120005252 is 25250002122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8454352 + ... + 8456967.

Almost surely, 2^22120005252 is an apocalyptic number.

It is an amenable number.

22120005252 is an abundant number, since it is smaller than the sum of its proper divisors (29966860348).

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

22120005252 is a wasteful number, since it uses less digits than its factorization.

22120005252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16911435 (or 16911433 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

Adding to 22120005252 its reverse (25250002122), we get a palindrome (47370007374).

The spelling of 22120005252 in words is "twenty-two billion, one hundred twenty million, five thousand, two hundred fifty-two".