22011210564 has 96 divisors (see below), whose sum is σ = 62898425856. Its totient is φ = 5847636480.

The previous prime is 22011210553. The next prime is 22011210583. The reversal of 22011210564 is 46501211022.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 25669 + ... + 211379.

It is an arithmetic number, because the mean of its divisors is an integer number (655191936).

Almost surely, 2^22011210564 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22011210564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31449212928).

22011210564 is an abundant number, since it is smaller than the sum of its proper divisors (40887215292).

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

22011210564 is a wasteful number, since it uses less digits than its factorization.

22011210564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185825 (or 185823 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 22011210564 its reverse (46501211022), we get a palindrome (68512421586).

The spelling of 22011210564 in words is "twenty-two billion, eleven million, two hundred ten thousand, five hundred sixty-four".