1223311202011 has 8 divisors (see below), whose sum is σ = 1229355936000. Its totient is φ = 1217280947688.

The previous prime is 1223311201997. The next prime is 1223311202021. The reversal of 1223311202011 is 1102021133221.

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 1223311202011 - 2²⁷ = 1223176984283 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1223311202011.

It is not an unprimeable number, because it can be changed into a prime (1223311202021) 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, 3450511 + ... + 3788488.

It is an arithmetic number, because the mean of its divisors is an integer number (153669492000).

Almost surely, 2^{1223311202011} is an apocalyptic number.

1223311202011 is a deficient number, since it is larger than the sum of its proper divisors (6044733989).

1223311202011 is an equidigital number, since it uses as much as digits as its factorization.

1223311202011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7239833.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1223311202011 its reverse (1102021133221), we get a palindrome (2325332335232).

The spelling of 1223311202011 in words is "one trillion, two hundred twenty-three billion, three hundred eleven million, two hundred two thousand, eleven".