30221244240 has 160 divisors (see below), whose sum is σ = 103215572352. Its totient is φ = 7253760000.

The previous prime is 30221244223. The next prime is 30221244323. The reversal of 30221244240 is 4244212203.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 30221244240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209970 + ... + 323310.

Almost surely, 2^30221244240 is an apocalyptic number.

30221244240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30221244240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51607786176).

30221244240 is an abundant number, since it is smaller than the sum of its proper divisors (72994328112).

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

30221244240 is a wasteful number, since it uses less digits than its factorization.

30221244240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113469 (or 113463 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 30221244240 its reverse (4244212203), we get a palindrome (34465456443).

The spelling of 30221244240 in words is "thirty billion, two hundred twenty-one million, two hundred forty-four thousand, two hundred forty".