2013221232 has 180 divisors, whose sum is σ = 6232491720. Its totient is φ = 606186240.

The previous prime is 2013221219. The next prime is 2013221233. The reversal of 2013221232 is 2321223102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013221233) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3954994 + ... + 3955502.

It is an arithmetic number, because the mean of its divisors is an integer number (34624954).

Almost surely, 2^2013221232 is an apocalyptic number.

2013221232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2013221232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3116245860).

2013221232 is an abundant number, since it is smaller than the sum of its proper divisors (4219270488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2013221232 is a wasteful number, since it uses less digits than its factorization.

2013221232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772 (or 752 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2013221232 is about 44868.9339298361. The cubic root of 2013221232 is about 1262.6912393634.

Adding to 2013221232 its reverse (2321223102), we get a palindrome (4334444334).

The spelling of 2013221232 in words is "two billion, thirteen million, two hundred twenty-one thousand, two hundred thirty-two".