122311223111211 has 16 divisors (see below), whose sum is σ = 164335066444800. Its totient is φ = 80915999621408.

The previous prime is 122311223111201. The next prime is 122311223111227. The reversal of 122311223111211 is 112111322113221.

It is a cyclic number.

It is not a de Polignac number, because 122311223111211 - 2¹⁹ = 122311222586923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122311223111201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237496056 + ... + 238010501.

It is an arithmetic number, because the mean of its divisors is an integer number (10270941652800).

Almost surely, 2^{122311223111211} is an apocalyptic number.

122311223111211 is a deficient number, since it is larger than the sum of its proper divisors (42023843333589).

122311223111211 is a wasteful number, since it uses less digits than its factorization.

122311223111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475507218.

The product of its digits is 288, while the sum is 24.

Adding to 122311223111211 its reverse (112111322113221), we get a palindrome (234422545224432).

The spelling of 122311223111211 in words is "one hundred twenty-two trillion, three hundred eleven billion, two hundred twenty-three million, one hundred eleven thousand, two hundred eleven".