211020201121011 has 16 divisors (see below), whose sum is σ = 287585913243648. Its totient is φ = 137572296048000.

The previous prime is 211020201121007. The next prime is 211020201121019. The reversal of 211020201121011 is 110121102020112.

It is a happy number.

It is not a de Polignac number, because 211020201121011 - 2² = 211020201121007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211020201121019) 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 15 ways as a sum of consecutive naturals, for example, 622893595 + ... + 623232276.

It is an arithmetic number, because the mean of its divisors is an integer number (17974119577728).

Almost surely, 2^{211020201121011} is an apocalyptic number.

211020201121011 is a deficient number, since it is larger than the sum of its proper divisors (76565712122637).

211020201121011 is a wasteful number, since it uses less digits than its factorization.

211020201121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246127122.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211020201121011 its reverse (110121102020112), we get a palindrome (321141303141123).

The spelling of 211020201121011 in words is "two hundred eleven trillion, twenty billion, two hundred one million, one hundred twenty-one thousand, eleven".