1223230120201 has 4 divisors (see below), whose sum is σ = 1295184833172. Its totient is φ = 1151275407232.

The previous prime is 1223230120157. The next prime is 1223230120241. The reversal of 1223230120201 is 1020210323221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 954429348601 + 268800771600 = 976949^2 + 518460^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223230120201 - 2¹⁷ = 1223229989129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223230120241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35977356460 + ... + 35977356493.

It is an arithmetic number, because the mean of its divisors is an integer number (323796208293).

Almost surely, 2^{1223230120201} is an apocalyptic number.

It is an amenable number.

1223230120201 is a deficient number, since it is larger than the sum of its proper divisors (71954712971).

1223230120201 is an equidigital number, since it uses as much as digits as its factorization.

1223230120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71954712970.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1223230120201 its reverse (1020210323221), we get a palindrome (2243440443422).

It can be divided in two parts, 1223230 and 120201, that added together give a palindrome (1343431).

The spelling of 1223230120201 in words is "one trillion, two hundred twenty-three billion, two hundred thirty million, one hundred twenty thousand, two hundred one".