7221616200 has 108 divisors (see below), whose sum is σ = 24264708585. Its totient is φ = 1924802880.

The previous prime is 7221616189. The next prime is 7221616217. The reversal of 7221616200 is 26161227.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

7221616200 is a `hidden beast` number, since 7 + 2 + 21 + 616 + 20 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7077183876 + 144432324 = 84126^2 + 12018^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=60090.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3604399 + ... + 3606401.

Almost surely, 2^7221616200 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 7221616200

7221616200 is an abundant number, since it is smaller than the sum of its proper divisors (17043092385).

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

7221616200 is a wasteful number, since it uses less digits than its factorization.

7221616200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4028 (or 2013 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 7221616200 is about 84980.0929629993. The cubic root of 7221616200 is about 1932.9092655573.

Adding to 7221616200 its reverse (26161227), we get a palindrome (7247777427).

The spelling of 7221616200 in words is "seven billion, two hundred twenty-one million, six hundred sixteen thousand, two hundred".