22244022020 has 24 divisors (see below), whose sum is σ = 50959032768. Its totient is φ = 8088735200.

The previous prime is 22244022013. The next prime is 22244022023. The reversal of 22244022020 is 2022044222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22244021983 and 22244022001.

It is not an unprimeable number, because it can be changed into a prime (22244022023) by changing a digit.

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, 50554376 + ... + 50554815.

It is an arithmetic number, because the mean of its divisors is an integer number (2123293032).

Almost surely, 2^22244022020 is an apocalyptic number.

22244022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22244022020 is an abundant number, since it is smaller than the sum of its proper divisors (28715010748).

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

22244022020 is a wasteful number, since it uses less digits than its factorization.

22244022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101109211 (or 101109209 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 22244022020 its reverse (2022044222), we get a palindrome (24266066242).

The spelling of 22244022020 in words is "twenty-two billion, two hundred forty-four million, twenty-two thousand, twenty".