1222528679 has 8 divisors (see below), whose sum is σ = 1271180928. Its totient is φ = 1174452480.

The previous prime is 1222528649. The next prime is 1222528717. The reversal of 1222528679 is 9768252221.

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

It is a cyclic number.

It is not a de Polignac number, because 1222528679 - 2⁸ = 1222528423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222528649) 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, 139682 + ... + 148175.

It is an arithmetic number, because the mean of its divisors is an integer number (158897616).

Almost surely, 2^1222528679 is an apocalyptic number.

1222528679 is a deficient number, since it is larger than the sum of its proper divisors (48652249).

1222528679 is a wasteful number, since it uses less digits than its factorization.

1222528679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288025.

The product of its digits is 241920, while the sum is 44.

The square root of 1222528679 is about 34964.6775903911. The cubic root of 1222528679 is about 1069.2674634978.

It can be divided in two parts, 12225 and 28679, that added together give a palindrome (40904).

The spelling of 1222528679 in words is "one billion, two hundred twenty-two million, five hundred twenty-eight thousand, six hundred seventy-nine".