221012011212101 has 8 divisors (see below), whose sum is σ = 231042840126144. Its totient is φ = 211016316551040.

The previous prime is 221012011212029. The next prime is 221012011212133. The reversal of 221012011212101 is 101212110210122.

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 221012011212101 - 2¹⁰ = 221012011211077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221012011212101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221012011212001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8783550380 + ... + 8783575541.

It is an arithmetic number, because the mean of its divisors is an integer number (28880355015768).

Almost surely, 2^{221012011212101} is an apocalyptic number.

It is an amenable number.

221012011212101 is a deficient number, since it is larger than the sum of its proper divisors (10030828914043).

221012011212101 is a wasteful number, since it uses less digits than its factorization.

221012011212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17567126491.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 221012011212101 its reverse (101212110210122), we get a palindrome (322224121422223).

The spelling of 221012011212101 in words is "two hundred twenty-one trillion, twelve billion, eleven million, two hundred twelve thousand, one hundred one".