2011333223221 has 32 divisors (see below), whose sum is σ = 2496228254208. Its totient is φ = 1581429657600.

The previous prime is 2011333223161. The next prime is 2011333223227. The reversal of 2011333223221 is 1223223331102.

It is a cyclic number.

It is not a de Polignac number, because 2011333223221 - 2¹⁹ = 2011332698933 is a prime.

It is a super-2 number, since 2×2011333223221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011333223227) 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, 103620 + ... + 2008333.

It is an arithmetic number, because the mean of its divisors is an integer number (78007132944).

Almost surely, 2^{2011333223221} is an apocalyptic number.

It is an amenable number.

2011333223221 is a deficient number, since it is larger than the sum of its proper divisors (484895030987).

2011333223221 is a wasteful number, since it uses less digits than its factorization.

2011333223221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112181.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 2011333223221 its reverse (1223223331102), we get a palindrome (3234556554323).

The spelling of 2011333223221 in words is "two trillion, eleven billion, three hundred thirty-three million, two hundred twenty-three thousand, two hundred twenty-one".