22222404020 has 24 divisors (see below), whose sum is σ = 46681504800. Its totient is φ = 8886208032.

The previous prime is 22222404019. The next prime is 22222404049. The reversal of 22222404020 is 2040422222.

It is a super-2 number, since 2×22222404020² (a number of 21 digits) contains 22 as substring.

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 = 22222403983 and 22222404001.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 105290 + ... + 235649.

It is an arithmetic number, because the mean of its divisors is an integer number (1945062700).

Almost surely, 2^22222404020 is an apocalyptic number.

22222404020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222404020 is an abundant number, since it is smaller than the sum of its proper divisors (24459100780).

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

22222404020 is a wasteful number, since it uses less digits than its factorization.

22222404020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344207 (or 344205 counting only the distinct ones).

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

Adding to 22222404020 its reverse (2040422222), we get a palindrome (24262826242).

The spelling of 22222404020 in words is "twenty-two billion, two hundred twenty-two million, four hundred four thousand, twenty".