1200221223 has 4 divisors (see below), whose sum is σ = 1600294968. Its totient is φ = 800147480.

The previous prime is 1200221147. The next prime is 1200221287. The reversal of 1200221223 is 3221220021.

It is a happy number.

1200221223 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1200221223 - 2⁹ = 1200220711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200221023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200036868 + ... + 200036873.

It is an arithmetic number, because the mean of its divisors is an integer number (400073742).

Almost surely, 2^1200221223 is an apocalyptic number.

1200221223 is a deficient number, since it is larger than the sum of its proper divisors (400073745).

1200221223 is an equidigital number, since it uses as much as digits as its factorization.

1200221223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400073744.

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

The square root of 1200221223 is about 34644.2090831931. The cubic root of 1200221223 is about 1062.7238664248.

Adding to 1200221223 its reverse (3221220021), we get a palindrome (4421441244).

The spelling of 1200221223 in words is "one billion, two hundred million, two hundred twenty-one thousand, two hundred twenty-three".