211021220200011 has 16 divisors (see below), whose sum is σ = 303008545188384. Its totient is φ = 129857619780864.

The previous prime is 211021220199989. The next prime is 211021220200057. The reversal of 211021220200011 is 110002022120112.

It is not a de Polignac number, because 211021220200011 - 2¹³ = 211021220191819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211021220200061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29955546 + ... + 36323231.

It is an arithmetic number, because the mean of its divisors is an integer number (18938034074274).

Almost surely, 2^{211021220200011} is an apocalyptic number.

211021220200011 is a deficient number, since it is larger than the sum of its proper divisors (91987324988373).

211021220200011 is a wasteful number, since it uses less digits than its factorization.

211021220200011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66360430.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 211021220200011 its reverse (110002022120112), we get a palindrome (321023242320123).

The spelling of 211021220200011 in words is "two hundred eleven trillion, twenty-one billion, two hundred twenty million, two hundred thousand, eleven".