1222404203311 has 4 divisors (see below), whose sum is σ = 1222483683312. Its totient is φ = 1222324723312.

The previous prime is 1222404203299. The next prime is 1222404203359. The reversal of 1222404203311 is 1133024042221.

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 1222404203311 - 2²⁵ = 1222370648879 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 (1222404204311) 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, 39716926 + ... + 39747691.

It is an arithmetic number, because the mean of its divisors is an integer number (305620920828).

Almost surely, 2^{1222404203311} is an apocalyptic number.

1222404203311 is a deficient number, since it is larger than the sum of its proper divisors (79480001).

1222404203311 is an equidigital number, since it uses as much as digits as its factorization.

1222404203311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79480000.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1222404203311 its reverse (1133024042221), we get a palindrome (2355428245532).

The spelling of 1222404203311 in words is "one trillion, two hundred twenty-two billion, four hundred four million, two hundred three thousand, three hundred eleven".