1223144201 has 4 divisors (see below), whose sum is σ = 1224098832. Its totient is φ = 1222189572.

The previous prime is 1223144179. The next prime is 1223144207. The reversal of 1223144201 is 1024413221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1223144201 - 2¹⁴ = 1223127817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223144207) 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, 475391 + ... + 477956.

It is an arithmetic number, because the mean of its divisors is an integer number (306024708).

Almost surely, 2^1223144201 is an apocalyptic number.

It is an amenable number.

1223144201 is a deficient number, since it is larger than the sum of its proper divisors (954631).

1223144201 is an equidigital number, since it uses as much as digits as its factorization.

1223144201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954630.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1223144201 is about 34973.4785373145. The cubic root of 1223144201 is about 1069.4468859339.

Adding to 1223144201 its reverse (1024413221), we get a palindrome (2247557422).

The spelling of 1223144201 in words is "one billion, two hundred twenty-three million, one hundred forty-four thousand, two hundred one".