1001200223 has 4 divisors (see below), whose sum is σ = 1001264208. Its totient is φ = 1001136240.

The previous prime is 1001200219. The next prime is 1001200241. The reversal of 1001200223 is 3220021001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1001200223 - 2² = 1001200219 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 (1001200253) 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 3 ways as a sum of consecutive naturals, for example, 8915 + ... + 45627.

It is an arithmetic number, because the mean of its divisors is an integer number (250316052).

Almost surely, 2^1001200223 is an apocalyptic number.

1001200223 is a deficient number, since it is larger than the sum of its proper divisors (63985).

1001200223 is an equidigital number, since it uses as much as digits as its factorization.

1001200223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63984.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1001200223 is about 31641.7481027834. The cubic root of 1001200223 is about 1000.3999143805.

Adding to 1001200223 its reverse (3220021001), we get a palindrome (4221221224).

The spelling of 1001200223 in words is "one billion, one million, two hundred thousand, two hundred twenty-three".