111221010200221 has 32 divisors (see below), whose sum is σ = 119758966588800. Its totient is φ = 102981750865920.

The previous prime is 111221010200191. The next prime is 111221010200239. The reversal of 111221010200221 is 122002010122111.

It is a cyclic number.

It is not a de Polignac number, because 111221010200221 - 2⁹ = 111221010199709 is a prime.

It is a super-2 number, since 2×111221010200221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111221010200195 and 111221010200204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111221010200621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109678705 + ... + 110688121.

It is an arithmetic number, because the mean of its divisors is an integer number (3742467705900).

Almost surely, 2^{111221010200221} is an apocalyptic number.

It is an amenable number.

111221010200221 is a deficient number, since it is larger than the sum of its proper divisors (8537956388579).

111221010200221 is a wasteful number, since it uses less digits than its factorization.

111221010200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010269.

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

Adding to 111221010200221 its reverse (122002010122111), we get a palindrome (233223020322332).

The spelling of 111221010200221 in words is "one hundred eleven trillion, two hundred twenty-one billion, ten million, two hundred thousand, two hundred twenty-one".