1200100223 has 8 divisors (see below), whose sum is σ = 1373208192. Its totient is φ = 1027408536.

The previous prime is 1200100207. The next prime is 1200100259. The reversal of 1200100223 is 3220010021.

It is a happy number.

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

It is not a de Polignac number, because 1200100223 - 2⁴ = 1200100207 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 (1200100273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97865 + ... + 109442.

It is an arithmetic number, because the mean of its divisors is an integer number (171651024).

Almost surely, 2^1200100223 is an apocalyptic number.

1200100223 is a deficient number, since it is larger than the sum of its proper divisors (173107969).

1200100223 is an equidigital number, since it uses as much as digits as its factorization.

1200100223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208141.

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

The square root of 1200100223 is about 34642.4627155749. The cubic root of 1200100223 is about 1062.6881524784.

Adding to 1200100223 its reverse (3220010021), we get a palindrome (4420110244).

The spelling of 1200100223 in words is "one billion, two hundred million, one hundred thousand, two hundred twenty-three".