1221003232330 has 32 divisors (see below), whose sum is σ = 2511816117120. Its totient is φ = 418623339840.

The previous prime is 1221003232327. The next prime is 1221003232331. The reversal of 1221003232330 is 332323001221.

It is not an unprimeable number, because it can be changed into a prime (1221003232331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9074445 + ... + 9208015.

It is an arithmetic number, because the mean of its divisors is an integer number (78494253660).

Almost surely, 2^{1221003232330} is an apocalyptic number.

1221003232330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1221003232330 is an abundant number, since it is smaller than the sum of its proper divisors (1290812884790).

1221003232330 is a wasteful number, since it uses less digits than its factorization.

1221003232330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264174.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 1221003232330 its reverse (332323001221), we get a palindrome (1553326233551).

The spelling of 1221003232330 in words is "one trillion, two hundred twenty-one billion, three million, two hundred thirty-two thousand, three hundred thirty".