22202044020 has 72 divisors (see below), whose sum is σ = 72526684776. Its totient is φ = 5465117952.

The previous prime is 22202044009. The next prime is 22202044031. The reversal of 22202044020 is 2044020222.

22202044020 is a `hidden beast` number, since 2 + 2 + 202 + 0 + 440 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (22202044009) and next prime (22202044031).

It can be written as a sum of positive squares in 4 ways, for example, as 28451556 + 22173592464 = 5334^2 + 148908^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22202043984 and 22202044002.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 4741687 + ... + 4746366.

Almost surely, 2^22202044020 is an apocalyptic number.

22202044020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22202044020 is an abundant number, since it is smaller than the sum of its proper divisors (50324640756).

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

22202044020 is a wasteful number, since it uses less digits than its factorization.

22202044020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9488081 (or 9488076 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 22202044020 its reverse (2044020222), we get a palindrome (24246064242).

The spelling of 22202044020 in words is "twenty-two billion, two hundred two million, forty-four thousand, twenty".