2221111441 has 8 divisors (see below), whose sum is σ = 2241441440. Its totient is φ = 2200843872.

The previous prime is 2221111351. The next prime is 2221111447. The reversal of 2221111441 is 1441111222.

It is a happy number.

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 2221111441 - 2⁷ = 2221111313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221111447) by changing a digit.

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, 57421 + ... + 87973.

It is an arithmetic number, because the mean of its divisors is an integer number (280180180).

Almost surely, 2^2221111441 is an apocalyptic number.

It is an amenable number.

2221111441 is a deficient number, since it is larger than the sum of its proper divisors (20329999).

2221111441 is a wasteful number, since it uses less digits than its factorization.

2221111441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31215.

The product of its digits is 128, while the sum is 19.

The square root of 2221111441 is about 47128.6689924509. The cubic root of 2221111441 is about 1304.7384160791.

Adding to 2221111441 its reverse (1441111222), we get a palindrome (3662222663).

The spelling of 2221111441 in words is "two billion, two hundred twenty-one million, one hundred eleven thousand, four hundred forty-one".