20222548985772 has 288 divisors, whose sum is σ = 60073474406400. Its totient is φ = 5615512842240.

The previous prime is 20222548985699. The next prime is 20222548985777. The reversal of 20222548985772 is 27758984522202.

20222548985772 is a `hidden beast` number, since 2 + 0 + 2 + 2 + 2 + 5 + 489 + 85 + 7 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (20222548985777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7308473133 + ... + 7308475899.

It is an arithmetic number, because the mean of its divisors is an integer number (208588452800).

Almost surely, 2^{20222548985772} 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 20222548985772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30036737203200).

20222548985772 is an abundant number, since it is smaller than the sum of its proper divisors (39850925420628).

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

20222548985772 is a wasteful number, since it uses less digits than its factorization.

20222548985772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5261 (or 5256 counting only the distinct ones).

The product of its (nonzero) digits is 90316800, while the sum is 63.

The spelling of 20222548985772 in words is "twenty trillion, two hundred twenty-two billion, five hundred forty-eight million, nine hundred eighty-five thousand, seven hundred seventy-two".