2111211332211 has 4 divisors (see below), whose sum is σ = 2814948442952. Its totient is φ = 1407474221472.

The previous prime is 2111211332137. The next prime is 2111211332231. The reversal of 2111211332211 is 1122331121112.

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

It is not a de Polignac number, because 2111211332211 - 2¹⁷ = 2111211201139 is a prime.

It is a super-4 number, since 4×2111211332211⁴ (a number of 50 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111211332231) 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 3 ways as a sum of consecutive naturals, for example, 351868555366 + ... + 351868555371.

It is an arithmetic number, because the mean of its divisors is an integer number (703737110738).

Almost surely, 2^{2111211332211} is an apocalyptic number.

2111211332211 is a deficient number, since it is larger than the sum of its proper divisors (703737110741).

2111211332211 is an equidigital number, since it uses as much as digits as its factorization.

2111211332211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703737110740.

The product of its digits is 144, while the sum is 21.

Adding to 2111211332211 its reverse (1122331121112), we get a palindrome (3233542453323).

The spelling of 2111211332211 in words is "two trillion, one hundred eleven billion, two hundred eleven million, three hundred thirty-two thousand, two hundred eleven".