2311222011211 has 8 divisors (see below), whose sum is σ = 2316821488640. Its totient is φ = 2305625153832.

The previous prime is 2311222011209. The next prime is 2311222011229. The reversal of 2311222011211 is 1121102221132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2311222011211 - 2¹ = 2311222011209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2311222081211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1117180 + ... + 2422918.

It is an arithmetic number, because the mean of its divisors is an integer number (289602686080).

Almost surely, 2^{2311222011211} is an apocalyptic number.

2311222011211 is a deficient number, since it is larger than the sum of its proper divisors (5599477429).

2311222011211 is a wasteful number, since it uses less digits than its factorization.

2311222011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310025.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 2311222011211 its reverse (1121102221132), we get a palindrome (3432324232343).

The spelling of 2311222011211 in words is "two trillion, three hundred eleven billion, two hundred twenty-two million, eleven thousand, two hundred eleven".