1222330321013 has 16 divisors (see below), whose sum is σ = 1300022393904. Its totient is φ = 1145286819840.

The previous prime is 1222330320997. The next prime is 1222330321033. The reversal of 1222330321013 is 3101230332221.

It can be written as a sum of positive squares in 8 ways, for example, as 24089212849 + 1198241108164 = 155207^2 + 1094642^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222330321013 - 2⁴ = 1222330320997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222330321013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222330321033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7526081 + ... + 7686777.

It is an arithmetic number, because the mean of its divisors is an integer number (81251399619).

Almost surely, 2^{1222330321013} is an apocalyptic number.

It is an amenable number.

1222330321013 is a deficient number, since it is larger than the sum of its proper divisors (77692072891).

1222330321013 is a wasteful number, since it uses less digits than its factorization.

1222330321013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162712.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1222330321013 its reverse (3101230332221), we get a palindrome (4323560653234).

The spelling of 1222330321013 in words is "one trillion, two hundred twenty-two billion, three hundred thirty million, three hundred twenty-one thousand, thirteen".