30321202212 has 144 divisors (see below), whose sum is σ = 93101532160. Its totient is φ = 8127428544.

The previous prime is 30321202139. The next prime is 30321202237. The reversal of 30321202212 is 21220212303.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 462423 + ... + 523905.

Almost surely, 2^30321202212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30321202212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46550766080).

30321202212 is an abundant number, since it is smaller than the sum of its proper divisors (62780329948).

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

30321202212 is a wasteful number, since it uses less digits than its factorization.

30321202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61622 (or 61617 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 30321202212 its reverse (21220212303), we get a palindrome (51541414515).

The spelling of 30321202212 in words is "thirty billion, three hundred twenty-one million, two hundred two thousand, two hundred twelve".