321121212330 has 32 divisors (see below), whose sum is σ = 771893281728. Its totient is φ = 85498726400.

The previous prime is 321121212329. The next prime is 321121212383. The reversal of 321121212330 is 33212121123.

It is a junction number, because it is equal to n+sod(n) for n = 321121212297 and 321121212306.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8330256 + ... + 8368715.

It is an arithmetic number, because the mean of its divisors is an integer number (24121665054).

Almost surely, 2^321121212330 is an apocalyptic number.

321121212330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

321121212330 is an abundant number, since it is smaller than the sum of its proper divisors (450772069398).

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

321121212330 is a wasteful number, since it uses less digits than its factorization.

321121212330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16699622.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 321121212330 its reverse (33212121123), we get a palindrome (354333333453).

The spelling of 321121212330 in words is "three hundred twenty-one billion, one hundred twenty-one million, two hundred twelve thousand, three hundred thirty".