1223221330 has 16 divisors (see below), whose sum is σ = 2317682880. Its totient is φ = 463536432.

The previous prime is 1223221327. The next prime is 1223221339. The reversal of 1223221330 is 331223221.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 1223221298 and 1223221307.

It is not an unprimeable number, because it can be changed into a prime (1223221339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3218814 + ... + 3219193.

It is an arithmetic number, because the mean of its divisors is an integer number (144855180).

Almost surely, 2^1223221330 is an apocalyptic number.

1223221330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223221330 is a deficient number, since it is larger than the sum of its proper divisors (1094461550).

1223221330 is a wasteful number, since it uses less digits than its factorization.

1223221330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6438033.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1223221330 is about 34974.5811983503. The cubic root of 1223221330 is about 1069.4693645142.

Adding to 1223221330 its reverse (331223221), we get a palindrome (1554444551).

The spelling of 1223221330 in words is "one billion, two hundred twenty-three million, two hundred twenty-one thousand, three hundred thirty".