311322120221222 has 32 divisors (see below), whose sum is σ = 548245704520224. Its totient is φ = 131002557811200.

The previous prime is 311322120221209. The next prime is 311322120221257. The reversal of 311322120221222 is 222122021223113.

It is a super-2 number, since 2×311322120221222² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311322120221191 and 311322120221200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6823027073 + ... + 6823072700.

It is an arithmetic number, because the mean of its divisors is an integer number (17132678266257).

Almost surely, 2^{311322120221222} is an apocalyptic number.

311322120221222 is a deficient number, since it is larger than the sum of its proper divisors (236923584299002).

311322120221222 is a wasteful number, since it uses less digits than its factorization.

311322120221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13646099864.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 311322120221222 its reverse (222122021223113), we get a palindrome (533444141444335).

The spelling of 311322120221222 in words is "three hundred eleven trillion, three hundred twenty-two billion, one hundred twenty million, two hundred twenty-one thousand, two hundred twenty-two".