222004002220 has 144 divisors (see below), whose sum is σ = 630700870464. Its totient is φ = 63873216000.

The previous prime is 222004002191. The next prime is 222004002263. The reversal of 222004002220 is 22200400222.

It is a junction number, because it is equal to n+sod(n) for n = 222004002194 and 222004002203.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 283831 + ... + 724270.

It is an arithmetic number, because the mean of its divisors is an integer number (4379867156).

Almost surely, 2^222004002220 is an apocalyptic number.

222004002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222004002220 is an abundant number, since it is smaller than the sum of its proper divisors (408696868244).

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

222004002220 is a wasteful number, since it uses less digits than its factorization.

222004002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008152 (or 1008139 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 222004002220 its reverse (22200400222), we get a palindrome (244204402442).

The spelling of 222004002220 in words is "two hundred twenty-two billion, four million, two thousand, two hundred twenty".