1222312023013 has 4 divisors (see below), whose sum is σ = 1222457044140. Its totient is φ = 1222167001888.

The previous prime is 1222312023001. The next prime is 1222312023019. The reversal of 1222312023013 is 3103202132221.

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 548965410084 + 673346612929 = 740922^2 + 820577^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222312023013 - 2⁹ = 1222312022501 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 (1222312023019) 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, 72497920 + ... + 72514777.

It is an arithmetic number, because the mean of its divisors is an integer number (305614261035).

Almost surely, 2^{1222312023013} is an apocalyptic number.

It is an amenable number.

1222312023013 is a deficient number, since it is larger than the sum of its proper divisors (145021127).

1222312023013 is an equidigital number, since it uses as much as digits as its factorization.

1222312023013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145021126.

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

Adding to 1222312023013 its reverse (3103202132221), we get a palindrome (4325514155234).

The spelling of 1222312023013 in words is "one trillion, two hundred twenty-two billion, three hundred twelve million, twenty-three thousand, thirteen".