7221727245 has 16 divisors (see below), whose sum is σ = 12234456000. Its totient is φ = 3625023744.

The previous prime is 7221727241. The next prime is 7221727301. The reversal of 7221727245 is 5427271227.

It is not a de Polignac number, because 7221727245 - 2² = 7221727241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7221727241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14159995 + ... + 14160504.

It is an arithmetic number, because the mean of its divisors is an integer number (764653500).

Almost surely, 2^7221727245 is an apocalyptic number.

It is an amenable number.

7221727245 is a deficient number, since it is larger than the sum of its proper divisors (5012728755).

7221727245 is a wasteful number, since it uses less digits than its factorization.

7221727245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28320524.

The product of its digits is 109760, while the sum is 39.

The square root of 7221727245 is about 84980.7463193870. The cubic root of 7221727245 is about 1932.9191727952.

The spelling of 7221727245 in words is "seven billion, two hundred twenty-one million, seven hundred twenty-seven thousand, two hundred forty-five".