2011312211 has 32 divisors (see below), whose sum is σ = 2297714688. Its totient is φ = 1750228480.

The previous prime is 2011312201. The next prime is 2011312231. The reversal of 2011312211 is 1122131102.

2011312211 = 464² + 465² + ... + 1830².

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011312211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011312201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1470650 + ... + 1472016.

It is an arithmetic number, because the mean of its divisors is an integer number (71803584).

Almost surely, 2^2011312211 is an apocalyptic number.

2011312211 is a deficient number, since it is larger than the sum of its proper divisors (286402477).

2011312211 is a wasteful number, since it uses less digits than its factorization.

2011312211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2011312211 is about 44847.6555797513. The cubic root of 2011312211 is about 1262.2920008413.

Adding to 2011312211 its reverse (1122131102), we get a palindrome (3133443313).

The spelling of 2011312211 in words is "two billion, eleven million, three hundred twelve thousand, two hundred eleven".