211111002221011 has 8 divisors (see below), whose sum is σ = 218390854191120. Its totient is φ = 203831161066848.

The previous prime is 211111002220933. The next prime is 211111002221029. The reversal of 211111002221011 is 110122200111112.

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 211111002221011 - 2⁷ = 211111002220883 is a prime.

It is a super-2 number, since 2×211111002221011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211111002221071) 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, 71804680 + ... + 74686906.

It is an arithmetic number, because the mean of its divisors is an integer number (27298856773890).

Almost surely, 2^{211111002221011} is an apocalyptic number.

211111002221011 is a deficient number, since it is larger than the sum of its proper divisors (7279851970109).

211111002221011 is a wasteful number, since it uses less digits than its factorization.

211111002221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5407973.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 211111002221011 its reverse (110122200111112), we get a palindrome (321233202332123).

The spelling of 211111002221011 in words is "two hundred eleven trillion, one hundred eleven billion, two million, two hundred twenty-one thousand, eleven".