311313202222 has 96 divisors (see below), whose sum is σ = 542409154560. Its totient is φ = 133729833600.

The previous prime is 311313202199. The next prime is 311313202223. The reversal of 311313202222 is 222202313113.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 311313202193 and 311313202202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311313202223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56404779 + ... + 56410297.

It is an arithmetic number, because the mean of its divisors is an integer number (5650095360).

Almost surely, 2^311313202222 is an apocalyptic number.

311313202222 is a deficient number, since it is larger than the sum of its proper divisors (231095952338).

311313202222 is a wasteful number, since it uses less digits than its factorization.

311313202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5750 (or 5739 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 311313202222 its reverse (222202313113), we get a palindrome (533515515335).

The spelling of 311313202222 in words is "three hundred eleven billion, three hundred thirteen million, two hundred two thousand, two hundred twenty-two".