2011301221 has 16 divisors (see below), whose sum is σ = 2212531200. Its totient is φ = 1821497328.

The previous prime is 2011301219. The next prime is 2011301231. The reversal of 2011301221 is 1221031102.

It is a cyclic number.

It is not a de Polignac number, because 2011301221 - 2¹ = 2011301219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011301231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12210 + ... + 64588.

It is an arithmetic number, because the mean of its divisors is an integer number (138283200).

Almost surely, 2^2011301221 is an apocalyptic number.

It is an amenable number.

2011301221 is a deficient number, since it is larger than the sum of its proper divisors (201229979).

2011301221 is a wasteful number, since it uses less digits than its factorization.

2011301221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52488.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2011301221 is about 44847.5330536697. The cubic root of 2011301221 is about 1262.2897017429.

Adding to 2011301221 its reverse (1221031102), we get a palindrome (3232332323).

The spelling of 2011301221 in words is "two billion, eleven million, three hundred one thousand, two hundred twenty-one".