30321122212212 has 48 divisors (see below), whose sum is σ = 76197642478272. Its totient is φ = 9328828561920.

The previous prime is 30321122212211. The next prime is 30321122212243. The reversal of 30321122212212 is 21221222112303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30321122212211) 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, 5831653 + ... + 9728844.

It is an arithmetic number, because the mean of its divisors is an integer number (1587450884964).

Almost surely, 2^{30321122212212} is an apocalyptic number.

It is an amenable number.

30321122212212 is an abundant number, since it is smaller than the sum of its proper divisors (45876520266060).

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

30321122212212 is a wasteful number, since it uses less digits than its factorization.

30321122212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15573008 (or 15573006 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 30321122212212 its reverse (21221222112303), we get a palindrome (51542344324515).

Subtracting from 30321122212212 its reverse (21221222112303), we obtain a palindrome (9099900099909).

The spelling of 30321122212212 in words is "thirty trillion, three hundred twenty-one billion, one hundred twenty-two million, two hundred twelve thousand, two hundred twelve".