30221312022 has 96 divisors (see below), whose sum is σ = 72542096640. Its totient is φ = 9016056000.

The previous prime is 30221311957. The next prime is 30221312027. The reversal of 30221312022 is 22021312203.

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

It is a junction number, because it is equal to n+sod(n) for n = 30221311986 and 30221312004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221312027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15026997 + ... + 15029007.

It is an arithmetic number, because the mean of its divisors is an integer number (755646840).

Almost surely, 2^30221312022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30221312022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36271048320).

30221312022 is an abundant number, since it is smaller than the sum of its proper divisors (42320784618).

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

30221312022 is a wasteful number, since it uses less digits than its factorization.

30221312022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3170 (or 3167 counting only the distinct ones).

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

Adding to 30221312022 its reverse (22021312203), we get a palindrome (52242624225).

It can be divided in two parts, 30221 and 312022, that added together give a palindrome (342243).

The spelling of 30221312022 in words is "thirty billion, two hundred twenty-one million, three hundred twelve thousand, twenty-two".