1222131210413 has 4 divisors (see below), whose sum is σ = 1234730501340. Its totient is φ = 1209531919488.

The previous prime is 1222131210407. The next prime is 1222131210659. The reversal of 1222131210413 is 3140121312221.

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 938848599364 + 283282611049 = 968942^2 + 532243^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222131210413 - 2¹⁶ = 1222131144877 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 (1222131210403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6299645318 + ... + 6299645511.

It is an arithmetic number, because the mean of its divisors is an integer number (308682625335).

Almost surely, 2^{1222131210413} is an apocalyptic number.

It is an amenable number.

1222131210413 is a deficient number, since it is larger than the sum of its proper divisors (12599290927).

1222131210413 is an equidigital number, since it uses as much as digits as its factorization.

1222131210413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12599290926.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1222131210413 its reverse (3140121312221), we get a palindrome (4362252522634).

The spelling of 1222131210413 in words is "one trillion, two hundred twenty-two billion, one hundred thirty-one million, two hundred ten thousand, four hundred thirteen".