1222230220 has 48 divisors (see below), whose sum is σ = 2595640320. Its totient is φ = 483404544.

The previous prime is 1222230209. The next prime is 1222230223. The reversal of 1222230220 is 220322221.

It is a junction number, because it is equal to n+sod(n) for n = 1222230194 and 1222230203.

It is not an unprimeable number, because it can be changed into a prime (1222230223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 987442 + ... + 988678.

It is an arithmetic number, because the mean of its divisors is an integer number (54075840).

Almost surely, 2^1222230220 is an apocalyptic number.

1222230220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222230220 is an abundant number, since it is smaller than the sum of its proper divisors (1373410100).

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

1222230220 is a wasteful number, since it uses less digits than its factorization.

1222230220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762 (or 1760 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1222230220 is about 34960.4093225466. The cubic root of 1222230220 is about 1069.1804420978.

Adding to 1222230220 its reverse (220322221), we get a palindrome (1442552441).

The spelling of 1222230220 in words is "one billion, two hundred twenty-two million, two hundred thirty thousand, two hundred twenty".