2011100001211 has 4 divisors (see below), whose sum is σ = 2298400001392. Its totient is φ = 1723800001032.

The previous prime is 2011100001199. The next prime is 2011100001233. The reversal of 2011100001211 is 1121000011102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2011100001211 - 2¹⁷ = 2011099870139 is a prime.

It is a super-3 number, since 3×2011100001211³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011100031211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143650000080 + ... + 143650000093.

It is an arithmetic number, because the mean of its divisors is an integer number (574600000348).

Almost surely, 2^{2011100001211} is an apocalyptic number.

2011100001211 is a deficient number, since it is larger than the sum of its proper divisors (287300000181).

2011100001211 is an equidigital number, since it uses as much as digits as its factorization.

2011100001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287300000180.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 2011100001211 its reverse (1121000011102), we get a palindrome (3132100012313).

The spelling of 2011100001211 in words is "two trillion, eleven billion, one hundred million, one thousand, two hundred eleven".