1222312323211 has 32 divisors (see below), whose sum is σ = 1449052663808. Its totient is φ = 1008943931520.

The previous prime is 1222312323179. The next prime is 1222312323223. The reversal of 1222312323211 is 1123232132221.

It is not a de Polignac number, because 1222312323211 - 2⁵ = 1222312323179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222312321211) 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 31 ways as a sum of consecutive naturals, for example, 46474981 + ... + 46501273.

It is an arithmetic number, because the mean of its divisors is an integer number (45282895744).

Almost surely, 2^{1222312323211} is an apocalyptic number.

1222312323211 is a deficient number, since it is larger than the sum of its proper divisors (226740340597).

1222312323211 is a wasteful number, since it uses less digits than its factorization.

1222312323211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27371.

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

Adding to 1222312323211 its reverse (1123232132221), we get a palindrome (2345544455432).

It can be divided in two parts, 122231 and 2323211, that added together give a palindrome (2445442).

The spelling of 1222312323211 in words is "one trillion, two hundred twenty-two billion, three hundred twelve million, three hundred twenty-three thousand, two hundred eleven".