221144332223001 has 48 divisors (see below), whose sum is σ = 332114004250560. Its totient is φ = 130715480332800.

The previous prime is 221144332222999. The next prime is 221144332223051. The reversal of 221144332223001 is 100322233441122.

It is a happy number.

It is not a de Polignac number, because 221144332223001 - 2¹ = 221144332222999 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 221144332223001.

It is not an unprimeable number, because it can be changed into a prime (221144332223051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43474485 + ... + 48294093.

It is an arithmetic number, because the mean of its divisors is an integer number (6919041755220).

Almost surely, 2^{221144332223001} is an apocalyptic number.

It is an amenable number.

221144332223001 is a deficient number, since it is larger than the sum of its proper divisors (110969672027559).

221144332223001 is a wasteful number, since it uses less digits than its factorization.

221144332223001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4822758 (or 4822747 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 221144332223001 its reverse (100322233441122), we get a palindrome (321466565664123).

The spelling of 221144332223001 in words is "two hundred twenty-one trillion, one hundred forty-four billion, three hundred thirty-two million, two hundred twenty-three thousand, one".