221112002020101 has 16 divisors (see below), whose sum is σ = 300434894436096. Its totient is φ = 144599598543296.

The previous prime is 221112002020081. The next prime is 221112002020243. The reversal of 221112002020101 is 101020200211122.

It is a cyclic number.

It is not a de Polignac number, because 221112002020101 - 2¹⁹ = 221112001495813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221112002021101) 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 15 ways as a sum of consecutive naturals, for example, 129532845 + ... + 131228738.

It is an arithmetic number, because the mean of its divisors is an integer number (18777180902256).

Almost surely, 2^{221112002020101} is an apocalyptic number.

It is an amenable number.

221112002020101 is a deficient number, since it is larger than the sum of its proper divisors (79322892415995).

221112002020101 is a wasteful number, since it uses less digits than its factorization.

221112002020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260766972.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221112002020101 its reverse (101020200211122), we get a palindrome (322132202231223).

The spelling of 221112002020101 in words is "two hundred twenty-one trillion, one hundred twelve billion, two million, twenty thousand, one hundred one".