221210224440001 has 4 divisors (see below), whose sum is σ = 232852867831600. Its totient is φ = 209567581048404.

The previous prime is 221210224439999. The next prime is 221210224440017. The reversal of 221210224440001 is 100044422012122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221210224440001 - 2¹ = 221210224439999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221210224440071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5821321695771 + ... + 5821321695808.

It is an arithmetic number, because the mean of its divisors is an integer number (58213216957900).

Almost surely, 2^{221210224440001} is an apocalyptic number.

It is an amenable number.

221210224440001 is a deficient number, since it is larger than the sum of its proper divisors (11642643391599).

221210224440001 is a wasteful number, since it uses less digits than its factorization.

221210224440001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11642643391598.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 221210224440001 its reverse (100044422012122), we get a palindrome (321254646452123).

The spelling of 221210224440001 in words is "two hundred twenty-one trillion, two hundred ten billion, two hundred twenty-four million, four hundred forty thousand, one".