7216602220 has 24 divisors (see below), whose sum is σ = 15643732608. Its totient is φ = 2793523200.

The previous prime is 7216602209. The next prime is 7216602223. The reversal of 7216602220 is 222066127.

It is not an unprimeable number, because it can be changed into a prime (7216602223) 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, 5819221 + ... + 5820460.

It is an arithmetic number, because the mean of its divisors is an integer number (651822192).

Almost surely, 2^7216602220 is an apocalyptic number.

It is an amenable number.

7216602220 is an abundant number, since it is smaller than the sum of its proper divisors (8427130388).

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

7216602220 is a wasteful number, since it uses less digits than its factorization.

7216602220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11639721 (or 11639719 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 7216602220 is about 84950.5869314627. The cubic root of 7216602220 is about 1932.4618212940.

Adding to 7216602220 its reverse (222066127), we get a palindrome (7438668347).

The spelling of 7216602220 in words is "seven billion, two hundred sixteen million, six hundred two thousand, two hundred twenty".