221222100110101 has 8 divisors (see below), whose sum is σ = 224599955183744. Its totient is φ = 217846481292000.

The previous prime is 221222100110047. The next prime is 221222100110183. The reversal of 221222100110101 is 101011001222122.

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 221222100110101 - 2¹⁷ = 221222099979029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221222100110191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558864525 + ... + 559260226.

It is an arithmetic number, because the mean of its divisors is an integer number (28074994397968).

Almost surely, 2^{221222100110101} is an apocalyptic number.

It is an amenable number.

221222100110101 is a deficient number, since it is larger than the sum of its proper divisors (3377855073643).

221222100110101 is a wasteful number, since it uses less digits than its factorization.

221222100110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118127771.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221222100110101 its reverse (101011001222122), we get a palindrome (322233101332223).

The spelling of 221222100110101 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, one hundred million, one hundred ten thousand, one hundred one".