221110221220001 has 8 divisors (see below), whose sum is σ = 226282848970464. Its totient is φ = 215938981177920.

The previous prime is 221110221219983. The next prime is 221110221220027. The reversal of 221110221220001 is 100022122011122.

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 221110221220001 - 2¹⁴ = 221110221203617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221110221210001) 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 7 ways as a sum of consecutive naturals, for example, 346604696 + ... + 347242041.

It is an arithmetic number, because the mean of its divisors is an integer number (28285356121308).

Almost surely, 2^{221110221220001} is an apocalyptic number.

It is an amenable number.

221110221220001 is a deficient number, since it is larger than the sum of its proper divisors (5172627750463).

221110221220001 is an equidigital number, since it uses as much as digits as its factorization.

221110221220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693854191.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221110221220001 its reverse (100022122011122), we get a palindrome (321132343231123).

The spelling of 221110221220001 in words is "two hundred twenty-one trillion, one hundred ten billion, two hundred twenty-one million, two hundred twenty thousand, one".