30221916912 has 160 divisors (see below), whose sum is σ = 94727151360. Its totient is φ = 9149172480.

The previous prime is 30221916887. The next prime is 30221916913. The reversal of 30221916912 is 21961912203.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221916913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6094338 + ... + 6099294.

It is an arithmetic number, because the mean of its divisors is an integer number (592044696).

Almost surely, 2^30221916912 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 30221916912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47363575680).

30221916912 is an abundant number, since it is smaller than the sum of its proper divisors (64505234448).

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

30221916912 is a wasteful number, since it uses less digits than its factorization.

30221916912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6268 (or 6256 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The spelling of 30221916912 in words is "thirty billion, two hundred twenty-one million, nine hundred sixteen thousand, nine hundred twelve".