1222230113213 has 4 divisors (see below), whose sum is σ = 1242266672508. Its totient is φ = 1202193553920.

The previous prime is 1222230113207. The next prime is 1222230113219. The reversal of 1222230113213 is 3123110322221.

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

It is an interprime number because it is at equal distance from previous prime (1222230113207) and next prime (1222230113219).

It can be written as a sum of positive squares in 2 ways, for example, as 355279178809 + 866950934404 = 596053^2 + 931102^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222230113213 - 2⁴ = 1222230113197 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 (1222230113219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10018279556 + ... + 10018279677.

It is an arithmetic number, because the mean of its divisors is an integer number (310566668127).

Almost surely, 2^{1222230113213} is an apocalyptic number.

It is an amenable number.

1222230113213 is a deficient number, since it is larger than the sum of its proper divisors (20036559295).

1222230113213 is an equidigital number, since it uses as much as digits as its factorization.

1222230113213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20036559294.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1222230113213 its reverse (3123110322221), we get a palindrome (4345340435434).

The spelling of 1222230113213 in words is "one trillion, two hundred twenty-two billion, two hundred thirty million, one hundred thirteen thousand, two hundred thirteen".