211001233321011 has 32 divisors (see below), whose sum is σ = 330219025555968. Its totient is φ = 117312200225280.

The previous prime is 211001233320991. The next prime is 211001233321027. The reversal of 211001233321011 is 110123332100112.

It is not a de Polignac number, because 211001233321011 - 2⁶ = 211001233320947 is a prime.

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 (211001233321061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75617131 + ... + 78357851.

It is an arithmetic number, because the mean of its divisors is an integer number (10319344548624).

Almost surely, 2^{211001233321011} is an apocalyptic number.

211001233321011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

211001233321011 is a deficient number, since it is larger than the sum of its proper divisors (119217792234957).

211001233321011 is a wasteful number, since it uses less digits than its factorization.

211001233321011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2839851.

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

Adding to 211001233321011 its reverse (110123332100112), we get a palindrome (321124565421123).

The spelling of 211001233321011 in words is "two hundred eleven trillion, one billion, two hundred thirty-three million, three hundred twenty-one thousand, eleven".