211332311211 has 32 divisors (see below), whose sum is σ = 336432660480. Its totient is φ = 115372930464.

The previous prime is 211332311167. The next prime is 211332311227. The reversal of 211332311211 is 112113233112.

It is not a de Polignac number, because 211332311211 - 2⁷ = 211332311083 is a prime.

It is a super-2 number, since 2×211332311211² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (211332311111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144486 + ... + 665988.

It is an arithmetic number, because the mean of its divisors is an integer number (10513520640).

Almost surely, 2^211332311211 is an apocalyptic number.

211332311211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

211332311211 is a deficient number, since it is larger than the sum of its proper divisors (125100349269).

211332311211 is a wasteful number, since it uses less digits than its factorization.

211332311211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522375.

The product of its digits is 216, while the sum is 21.

Adding to 211332311211 its reverse (112113233112), we get a palindrome (323445544323).

The spelling of 211332311211 in words is "two hundred eleven billion, three hundred thirty-two million, three hundred eleven thousand, two hundred eleven".