1223111303201 has 4 divisors (see below), whose sum is σ = 1232742100992. Its totient is φ = 1213480505412.

The previous prime is 1223111303131. The next prime is 1223111303221. The reversal of 1223111303201 is 1023031113221.

It is a happy number.

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 1223111303201 - 2¹⁸ = 1223111041057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1223111303221) 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, 4815398705 + ... + 4815398958.

It is an arithmetic number, because the mean of its divisors is an integer number (308185525248).

Almost surely, 2^{1223111303201} is an apocalyptic number.

It is an amenable number.

1223111303201 is a deficient number, since it is larger than the sum of its proper divisors (9630797791).

1223111303201 is an equidigital number, since it uses as much as digits as its factorization.

1223111303201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9630797790.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1223111303201 its reverse (1023031113221), we get a palindrome (2246142416422).

The spelling of 1223111303201 in words is "one trillion, two hundred twenty-three billion, one hundred eleven million, three hundred three thousand, two hundred one".