111101000201221 has 16 divisors (see below), whose sum is σ = 119129454570240. Its totient is φ = 103238535628800.

The previous prime is 111101000201197. The next prime is 111101000201263. The reversal of 111101000201221 is 122102000101111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111101000201221 - 2¹¹ = 111101000199173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111101000204221) 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 15 ways as a sum of consecutive naturals, for example, 38704245 + ... + 41475541.

It is an arithmetic number, because the mean of its divisors is an integer number (7445590910640).

Almost surely, 2^{111101000201221} is an apocalyptic number.

It is an amenable number.

111101000201221 is a deficient number, since it is larger than the sum of its proper divisors (8028454369019).

111101000201221 is a wasteful number, since it uses less digits than its factorization.

111101000201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801244.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111101000201221 its reverse (122102000101111), we get a palindrome (233203000302332).

The spelling of 111101000201221 in words is "one hundred eleven trillion, one hundred one billion, two hundred one thousand, two hundred twenty-one".