222422420020 has 24 divisors (see below), whose sum is σ = 467544604968. Its totient is φ = 88881820800.

The previous prime is 222422419957. The next prime is 222422420047. The reversal of 222422420020 is 20024224222.

It can be written as a sum of positive squares in 4 ways, for example, as 73261166224 + 149161253796 = 270668^2 + 386214^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222422419973 and 222422420000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5425771 + ... + 5466610.

It is an arithmetic number, because the mean of its divisors is an integer number (19481025207).

Almost surely, 2^222422420020 is an apocalyptic number.

222422420020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222422420020 is an abundant number, since it is smaller than the sum of its proper divisors (245122184948).

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

222422420020 is a wasteful number, since it uses less digits than its factorization.

222422420020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10893411 (or 10893409 counting only the distinct ones).

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

Adding to 222422420020 its reverse (20024224222), we get a palindrome (242446644242).

The spelling of 222422420020 in words is "two hundred twenty-two billion, four hundred twenty-two million, four hundred twenty thousand, twenty".