222422020020 has 36 divisors (see below), whose sum is σ = 674680127940. Its totient is φ = 59312538624.

The previous prime is 222422019973. The next prime is 222422020127. The reversal of 222422020020 is 20020224222.

It is a happy number.

222422020020 is a `hidden beast` number, since 2 + 22 + 422 + 0 + 200 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 83778986916 + 138643033104 = 289446^2 + 372348^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 = 222422019975 and 222422020002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 617838765 + ... + 617839124.

It is an arithmetic number, because the mean of its divisors is an integer number (18741114665).

Almost surely, 2^222422020020 is an apocalyptic number.

222422020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222422020020 is an abundant number, since it is smaller than the sum of its proper divisors (452258107920).

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

222422020020 is a wasteful number, since it uses less digits than its factorization.

222422020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235677904 (or 1235677899 counting only the distinct ones).

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

Adding to 222422020020 its reverse (20020224222), we get a palindrome (242442244242).

The spelling of 222422020020 in words is "two hundred twenty-two billion, four hundred twenty-two million, twenty thousand, twenty".