221214422441 has 16 divisors (see below), whose sum is σ = 250819645440. Its totient is φ = 193993295760.

The previous prime is 221214422437. The next prime is 221214422447. The reversal of 221214422441 is 144224412122.

It is not a de Polignac number, because 221214422441 - 2² = 221214422437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (221214422447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8151155 + ... + 8178248.

It is an arithmetic number, because the mean of its divisors is an integer number (15676227840).

Almost surely, 2^221214422441 is an apocalyptic number.

It is an amenable number.

221214422441 is a deficient number, since it is larger than the sum of its proper divisors (29605222999).

221214422441 is a wasteful number, since it uses less digits than its factorization.

221214422441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16329476.

The product of its digits is 8192, while the sum is 29.

Adding to 221214422441 its reverse (144224412122), we get a palindrome (365438834563).

The spelling of 221214422441 in words is "two hundred twenty-one billion, two hundred fourteen million, four hundred twenty-two thousand, four hundred forty-one".