1222021126 has 8 divisors (see below), whose sum is σ = 1882573200. Its totient is φ = 594496728.

The previous prime is 1222021121. The next prime is 1222021133. The reversal of 1222021126 is 6211202221.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222021121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8256826 + ... + 8256973.

It is an arithmetic number, because the mean of its divisors is an integer number (235321650).

Almost surely, 2^1222021126 is an apocalyptic number.

1222021126 is a deficient number, since it is larger than the sum of its proper divisors (660552074).

1222021126 is a wasteful number, since it uses less digits than its factorization.

1222021126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16513838.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1222021126 is about 34957.4187548223. The cubic root of 1222021126 is about 1069.1194683245.

Adding to 1222021126 its reverse (6211202221), we get a palindrome (7433223347).

The spelling of 1222021126 in words is "one billion, two hundred twenty-two million, twenty-one thousand, one hundred twenty-six".