2111211333305 has 32 divisors (see below), whose sum is σ = 2641546961664. Its totient is φ = 1618311695616.

The previous prime is 2111211333299. The next prime is 2111211333317. The reversal of 2111211333305 is 5033331121112.

It is a cyclic number.

It is not a de Polignac number, because 2111211333305 - 2¹⁸ = 2111211071161 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44759564 + ... + 44806706.

It is an arithmetic number, because the mean of its divisors is an integer number (82548342552).

Almost surely, 2^{2111211333305} is an apocalyptic number.

It is an amenable number.

2111211333305 is a deficient number, since it is larger than the sum of its proper divisors (530335628359).

2111211333305 is a wasteful number, since it uses less digits than its factorization.

2111211333305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50865.

The product of its (nonzero) digits is 1620, while the sum is 26.

Adding to 2111211333305 its reverse (5033331121112), we get a palindrome (7144542454417).

The spelling of 2111211333305 in words is "two trillion, one hundred eleven billion, two hundred eleven million, three hundred thirty-three thousand, three hundred five".