7221217677 has 8 divisors (see below), whose sum is σ = 9650224320. Its totient is φ = 4803178080.

The previous prime is 7221217667. The next prime is 7221217681. The reversal of 7221217677 is 7767121227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7221217677 - 2¹² = 7221213581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7221217667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2740224 + ... + 2742857.

It is an arithmetic number, because the mean of its divisors is an integer number (1206278040).

Almost surely, 2^7221217677 is an apocalyptic number.

It is an amenable number.

7221217677 is a deficient number, since it is larger than the sum of its proper divisors (2429006643).

7221217677 is a wasteful number, since it uses less digits than its factorization.

7221217677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5483523.

The product of its digits is 115248, while the sum is 42.

The square root of 7221217677 is about 84977.7481285542. The cubic root of 7221217677 is about 1932.8737092059.

The spelling of 7221217677 in words is "seven billion, two hundred twenty-one million, two hundred seventeen thousand, six hundred seventy-seven".