1223230221013 has 4 divisors (see below), whose sum is σ = 1223319371968. Its totient is φ = 1223141070060.

The previous prime is 1223230220957. The next prime is 1223230221061. The reversal of 1223230221013 is 3101220323221.

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 1223230221013 - 2¹³ = 1223230212821 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 (1223230222013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44554893 + ... + 44582338.

It is an arithmetic number, because the mean of its divisors is an integer number (305829842992).

Almost surely, 2^{1223230221013} is an apocalyptic number.

It is an amenable number.

1223230221013 is a deficient number, since it is larger than the sum of its proper divisors (89150955).

1223230221013 is an equidigital number, since it uses as much as digits as its factorization.

1223230221013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89150954.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1223230221013 its reverse (3101220323221), we get a palindrome (4324450544234).

The spelling of 1223230221013 in words is "one trillion, two hundred twenty-three billion, two hundred thirty million, two hundred twenty-one thousand, thirteen".