211211200012011 has 16 divisors (see below), whose sum is σ = 282196443403008. Its totient is φ = 140516718300000.

The previous prime is 211211200011967. The next prime is 211211200012013. The reversal of 211211200012011 is 110210002112112.

It is a happy number.

It is not a de Polignac number, because 211211200012011 - 2¹⁷ = 211211199880939 is a prime.

It is a super-2 number, since 2×211211200012011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211211200012013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133701261 + ... + 135271761.

It is an arithmetic number, because the mean of its divisors is an integer number (17637277712688).

Almost surely, 2^{211211200012011} is an apocalyptic number.

211211200012011 is a deficient number, since it is larger than the sum of its proper divisors (70985243390997).

211211200012011 is a wasteful number, since it uses less digits than its factorization.

211211200012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663042.

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

Adding to 211211200012011 its reverse (110210002112112), we get a palindrome (321421202124123).

The spelling of 211211200012011 in words is "two hundred eleven trillion, two hundred eleven billion, two hundred million, twelve thousand, eleven".