1232221211213 has 4 divisors (see below), whose sum is σ = 1258438683840. Its totient is φ = 1206003738588.

The previous prime is 1232221211189. The next prime is 1232221211219. The reversal of 1232221211213 is 3121121222321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1232221211213 - 2¹⁴ = 1232221194829 is a prime.

It is a super-2 number, since 2×1232221211213² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232221211219) 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, 13108736243 + ... + 13108736336.

It is an arithmetic number, because the mean of its divisors is an integer number (314609670960).

Almost surely, 2^{1232221211213} is an apocalyptic number.

It is an amenable number.

1232221211213 is a deficient number, since it is larger than the sum of its proper divisors (26217472627).

1232221211213 is an equidigital number, since it uses as much as digits as its factorization.

1232221211213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26217472626.

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

Adding to 1232221211213 its reverse (3121121222321), we get a palindrome (4353342433534).

The spelling of 1232221211213 in words is "one trillion, two hundred thirty-two billion, two hundred twenty-one million, two hundred eleven thousand, two hundred thirteen".