79220221348 has 12 divisors (see below), whose sum is σ = 140390266240. Its totient is φ = 39108716712.

The previous prime is 79220221343. The next prime is 79220221393. The reversal of 79220221348 is 84312202297.

It is a happy number.

It is a super-2 number, since 2×79220221348² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79220221348.

It is not an unprimeable number, because it can be changed into a prime (79220221343) 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 3 ways as a sum of consecutive naturals, for example, 125348136 + ... + 125348767.

Almost surely, 2^79220221348 is an apocalyptic number.

It is an amenable number.

79220221348 is a deficient number, since it is larger than the sum of its proper divisors (61170044892).

79220221348 is a wasteful number, since it uses less digits than its factorization.

79220221348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250696986 (or 250696984 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 79220221348 in words is "seventy-nine billion, two hundred twenty million, two hundred twenty-one thousand, three hundred forty-eight".