2111011221211 has 8 divisors (see below), whose sum is σ = 2121668640000. Its totient is φ = 2100354296040.

The previous prime is 2111011221149. The next prime is 2111011221259. The reversal of 2111011221211 is 1121221101112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2111011221211 - 2³³ = 2102421286619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111011221311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10951140 + ... + 11142238.

It is an arithmetic number, because the mean of its divisors is an integer number (265208580000).

Almost surely, 2^{2111011221211} is an apocalyptic number.

2111011221211 is a deficient number, since it is larger than the sum of its proper divisors (10657418789).

2111011221211 is a wasteful number, since it uses less digits than its factorization.

2111011221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246809.

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

Adding to 2111011221211 its reverse (1121221101112), we get a palindrome (3232232322323).

The spelling of 2111011221211 in words is "two trillion, one hundred eleven billion, eleven million, two hundred twenty-one thousand, two hundred eleven".