221112010202101 has 8 divisors (see below), whose sum is σ = 221680067223384. Its totient is φ = 220544036044800.

The previous prime is 221112010202093. The next prime is 221112010202107. The reversal of 221112010202101 is 101202010211122.

It can be written as a sum of positive squares in 4 ways, for example, as 159574245352900 + 61537764849201 = 12632270^2 + 7844601^2 .

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 221112010202101 - 2³ = 221112010202093 is a prime.

It is a super-2 number, since 2×221112010202101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221112010202107) 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, 15370626 + ... + 26047651.

It is an arithmetic number, because the mean of its divisors is an integer number (27710008402923).

Almost surely, 2^{221112010202101} is an apocalyptic number.

It is an amenable number.

221112010202101 is a deficient number, since it is larger than the sum of its proper divisors (568057021283).

221112010202101 is a wasteful number, since it uses less digits than its factorization.

221112010202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41431991.

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

Adding to 221112010202101 its reverse (101202010211122), we get a palindrome (322314020413223).

The spelling of 221112010202101 in words is "two hundred twenty-one trillion, one hundred twelve billion, ten million, two hundred two thousand, one hundred one".