20220019218 has 96 divisors (see below), whose sum is σ = 51845564160. Its totient is φ = 5572506240.

The previous prime is 20220019217. The next prime is 20220019219. The reversal of 20220019218 is 81291002202.

It is an interprime number because it is at equal distance from previous prime (20220019217) and next prime (20220019219).

It is a junction number, because it is equal to n+sod(n) for n = 20220019191 and 20220019200.

It is not an unprimeable number, because it can be changed into a prime (20220019217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5044171 + ... + 5048177.

It is an arithmetic number, because the mean of its divisors is an integer number (540057960).

Almost surely, 2^20220019218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20220019218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25922782080).

20220019218 is an abundant number, since it is smaller than the sum of its proper divisors (31625544942).

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

20220019218 is a wasteful number, since it uses less digits than its factorization.

20220019218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5432 (or 5429 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 20220019218 in words is "twenty billion, two hundred twenty million, nineteen thousand, two hundred eighteen".