2216421530424 has 32 divisors (see below), whose sum is σ = 6156726474000. Its totient is φ = 738807176736.

The previous prime is 2216421530423. The next prime is 2216421530447. The reversal of 2216421530424 is 4240351246122.

2216421530424 is a `hidden beast` number, since 2 + 2 + 1 + 64 + 21 + 530 + 42 + 4 = 666.

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 (2216421530423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5130605179 + ... + 5130605610.

Almost surely, 2^{2216421530424} is an apocalyptic number.

2216421530424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2216421530424 is an abundant number, since it is smaller than the sum of its proper divisors (3940304943576).

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

2216421530424 is a wasteful number, since it uses less digits than its factorization.

2216421530424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10261210804 (or 10261210794 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 2216421530424 its reverse (4240351246122), we get a palindrome (6456772776546).

The spelling of 2216421530424 in words is "two trillion, two hundred sixteen billion, four hundred twenty-one million, five hundred thirty thousand, four hundred twenty-four".