22270022820 has 96 divisors (see below), whose sum is σ = 69343223040. Its totient is φ = 5933640960.

The previous prime is 22270022813. The next prime is 22270022851. The reversal of 22270022820 is 2822007222.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 31 ways as a sum of consecutive naturals, for example, 643560 + ... + 677280.

It is an arithmetic number, because the mean of its divisors is an integer number (722325240).

Almost surely, 2^22270022820 is an apocalyptic number.

22270022820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22270022820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34671611520).

22270022820 is an abundant number, since it is smaller than the sum of its proper divisors (47073200220).

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

22270022820 is a wasteful number, since it uses less digits than its factorization.

22270022820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34962 (or 34954 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The spelling of 22270022820 in words is "twenty-two billion, two hundred seventy million, twenty-two thousand, eight hundred twenty".