1222122526 has 8 divisors (see below), whose sum is σ = 1912887504. Its totient is φ = 584493360.

The previous prime is 1222122511. The next prime is 1222122527. The reversal of 1222122526 is 6252212221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1222122526.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222122527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13283895 + ... + 13283986.

It is an arithmetic number, because the mean of its divisors is an integer number (239110938).

Almost surely, 2^1222122526 is an apocalyptic number.

1222122526 is a deficient number, since it is larger than the sum of its proper divisors (690764978).

1222122526 is a wasteful number, since it uses less digits than its factorization.

1222122526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26567906.

The product of its digits is 1920, while the sum is 25.

The square root of 1222122526 is about 34958.8690606547. The cubic root of 1222122526 is about 1069.1490383849.

Adding to 1222122526 its reverse (6252212221), we get a palindrome (7474334747).

The spelling of 1222122526 in words is "one billion, two hundred twenty-two million, one hundred twenty-two thousand, five hundred twenty-six".