1222100223 has 16 divisors (see below), whose sum is σ = 1686960000. Its totient is φ = 786030560.

The previous prime is 1222100221. The next prime is 1222100237. The reversal of 1222100223 is 3220012221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1222100223 - 2¹ = 1222100221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222100221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125728 + ... + 135098.

It is an arithmetic number, because the mean of its divisors is an integer number (105435000).

Almost surely, 2^1222100223 is an apocalyptic number.

1222100223 is a deficient number, since it is larger than the sum of its proper divisors (464859777).

1222100223 is a wasteful number, since it uses less digits than its factorization.

1222100223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10902.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1222100223 is about 34958.5500700472. The cubic root of 1222100223 is about 1069.1425345700.

Adding to 1222100223 its reverse (3220012221), we get a palindrome (4442112444).

The spelling of 1222100223 in words is "one billion, two hundred twenty-two million, one hundred thousand, two hundred twenty-three".