2311311212222 has 16 divisors (see below), whose sum is σ = 3649477271760. Its totient is φ = 1094820072192.

The previous prime is 2311311212209. The next prime is 2311311212227. The reversal of 2311311212222 is 2222121131132.

2311311212222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2311311212222² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311311212227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4127828 + ... + 4654200.

It is an arithmetic number, because the mean of its divisors is an integer number (228092329485).

Almost surely, 2^{2311311212222} is an apocalyptic number.

2311311212222 is a deficient number, since it is larger than the sum of its proper divisors (1338166059538).

2311311212222 is a wasteful number, since it uses less digits than its factorization.

2311311212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641947.

The product of its digits is 576, while the sum is 23.

Adding to 2311311212222 its reverse (2222121131132), we get a palindrome (4533432343354).

The spelling of 2311311212222 in words is "two trillion, three hundred eleven billion, three hundred eleven million, two hundred twelve thousand, two hundred twenty-two".