1222310001331 has 4 divisors (see below), whose sum is σ = 1248316597152. Its totient is φ = 1196303405512.

The previous prime is 1222310001281. The next prime is 1222310001347. The reversal of 1222310001331 is 1331000132221.

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 1222310001331 - 2⁹ = 1222310000819 is a prime.

It is a super-2 number, since 2×1222310001331² (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 = 1222310001299 and 1222310001308.

It is not an unprimeable number, because it can be changed into a prime (1222310001361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13003297840 + ... + 13003297933.

It is an arithmetic number, because the mean of its divisors is an integer number (312079149288).

Almost surely, 2^{1222310001331} is an apocalyptic number.

1222310001331 is a deficient number, since it is larger than the sum of its proper divisors (26006595821).

1222310001331 is an equidigital number, since it uses as much as digits as its factorization.

1222310001331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26006595820.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1222310001331 its reverse (1331000132221), we get a palindrome (2553310133552).

The spelling of 1222310001331 in words is "one trillion, two hundred twenty-two billion, three hundred ten million, one thousand, three hundred thirty-one".