2221021441 has 8 divisors (see below), whose sum is σ = 2249632224. Its totient is φ = 2192568000.

The previous prime is 2221021417. The next prime is 2221021447. The reversal of 2221021441 is 1441201222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2221021441 - 2⁹ = 2221020929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221021447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10791 + ... + 67516.

It is an arithmetic number, because the mean of its divisors is an integer number (281204028).

Almost surely, 2^2221021441 is an apocalyptic number.

It is an amenable number.

2221021441 is a deficient number, since it is larger than the sum of its proper divisors (28610783).

2221021441 is a wasteful number, since it uses less digits than its factorization.

2221021441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78671.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2221021441 is about 47127.7141499564. The cubic root of 2221021441 is about 1304.7207930637.

Adding to 2221021441 its reverse (1441201222), we get a palindrome (3662222663).

The spelling of 2221021441 in words is "two billion, two hundred twenty-one million, twenty-one thousand, four hundred forty-one".