222312002220 has 240 divisors, whose sum is σ = 869487429888. Its totient is φ = 46194675840.

The previous prime is 222312002207. The next prime is 222312002257. The reversal of 222312002220 is 22200213222.

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 = 222312002193 and 222312002202.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 766362 + ... + 1015841.

Almost surely, 2^222312002220 is an apocalyptic number.

222312002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222312002220 is an abundant number, since it is smaller than the sum of its proper divisors (647175427668).

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

222312002220 is a wasteful number, since it uses less digits than its factorization.

222312002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782242 (or 1782231 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 222312002220 its reverse (22200213222), we get a palindrome (244512215442).

The spelling of 222312002220 in words is "two hundred twenty-two billion, three hundred twelve million, two thousand, two hundred twenty".