1222013231311 has 8 divisors (see below), whose sum is σ = 1275430447584. Its totient is φ = 1168619865600.

The previous prime is 1222013231297. The next prime is 1222013231339. The reversal of 1222013231311 is 1131323102221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222013231311 - 2⁷ = 1222013231183 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 (1222013231911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5857890 + ... + 6062911.

It is an arithmetic number, because the mean of its divisors is an integer number (159428805948).

Almost surely, 2^{1222013231311} is an apocalyptic number.

1222013231311 is a deficient number, since it is larger than the sum of its proper divisors (53417216273).

1222013231311 is a wasteful number, since it uses less digits than its factorization.

1222013231311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11925281.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1222013231311 its reverse (1131323102221), we get a palindrome (2353336333532).

The spelling of 1222013231311 in words is "one trillion, two hundred twenty-two billion, thirteen million, two hundred thirty-one thousand, three hundred eleven".