222420044020 has 24 divisors (see below), whose sum is σ = 467223216264. Its totient is φ = 88941136896.

The previous prime is 222420043991. The next prime is 222420044069. The reversal of 222420044020 is 20440024222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13686192144 + 208733851876 = 116988^2 + 456874^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222420043982 and 222420044000.

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 7 ways as a sum of consecutive naturals, for example, 1612129 + ... + 1744648.

It is an arithmetic number, because the mean of its divisors is an integer number (19467634011).

Almost surely, 2^222420044020 is an apocalyptic number.

222420044020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222420044020 is an abundant number, since it is smaller than the sum of its proper divisors (244803172244).

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

222420044020 is a wasteful number, since it uses less digits than its factorization.

222420044020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360099 (or 3360097 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 222420044020 its reverse (20440024222), we get a palindrome (242860068242).

The spelling of 222420044020 in words is "two hundred twenty-two billion, four hundred twenty million, forty-four thousand, twenty".