1222211324413 has 4 divisors (see below), whose sum is σ = 1294106108220. Its totient is φ = 1150316540608.

The previous prime is 1222211324401. The next prime is 1222211324449. The reversal of 1222211324413 is 3144231122221.

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 828050860729 + 394160463684 = 909973^2 + 627822^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222211324413 - 2¹⁷ = 1222211193341 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 (1222211334413) 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, 35947391878 + ... + 35947391911.

It is an arithmetic number, because the mean of its divisors is an integer number (323526527055).

Almost surely, 2^{1222211324413} is an apocalyptic number.

It is an amenable number.

1222211324413 is a deficient number, since it is larger than the sum of its proper divisors (71894783807).

1222211324413 is an equidigital number, since it uses as much as digits as its factorization.

1222211324413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71894783806.

The product of its digits is 4608, while the sum is 28.

Adding to 1222211324413 its reverse (3144231122221), we get a palindrome (4366442446634).

The spelling of 1222211324413 in words is "one trillion, two hundred twenty-two billion, two hundred eleven million, three hundred twenty-four thousand, four hundred thirteen".