1322212231231 has 4 divisors (see below), whose sum is σ = 1328856514000. Its totient is φ = 1315567948464.

The previous prime is 1322212231213. The next prime is 1322212231243. The reversal of 1322212231231 is 1321322122231.

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

It is a cyclic number.

It is not a de Polignac number, because 1322212231231 - 2¹⁷ = 1322212100159 is a prime.

It is a super-2 number, since 2×1322212231231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1322212231196 and 1322212231205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322212231201) 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, 3322141086 + ... + 3322141483.

It is an arithmetic number, because the mean of its divisors is an integer number (332214128500).

Almost surely, 2^{1322212231231} is an apocalyptic number.

1322212231231 is a deficient number, since it is larger than the sum of its proper divisors (6644282769).

1322212231231 is an equidigital number, since it uses as much as digits as its factorization.

1322212231231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6644282768.

The product of its digits is 1728, while the sum is 25.

Adding to 1322212231231 its reverse (1321322122231), we get a palindrome (2643534353462).

The spelling of 1322212231231 in words is "one trillion, three hundred twenty-two billion, two hundred twelve million, two hundred thirty-one thousand, two hundred thirty-one".