2221001332 has 24 divisors (see below), whose sum is σ = 4241395872. Its totient is φ = 1009236000.

The previous prime is 2221001323. The next prime is 2221001401. The reversal of 2221001332 is 2331001222.

It is a super-3 number, since 3×2221001332³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199218 + ... + 210070.

It is an arithmetic number, because the mean of its divisors is an integer number (176724828).

Almost surely, 2^2221001332 is an apocalyptic number.

2221001332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2221001332 is a deficient number, since it is larger than the sum of its proper divisors (2020394540).

2221001332 is a wasteful number, since it uses less digits than its factorization.

2221001332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15519 (or 15517 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2221001332 is about 47127.5008036709. The cubic root of 2221001332 is about 1304.7168554296.

Adding to 2221001332 its reverse (2331001222), we get a palindrome (4552002554).

The spelling of 2221001332 in words is "two billion, two hundred twenty-one million, one thousand, three hundred thirty-two".