111202121101 has 8 divisors (see below), whose sum is σ = 111280843008. Its totient is φ = 111123432000.

The previous prime is 111202121099. The next prime is 111202121143. The reversal of 111202121101 is 101121202111.

It is a happy number.

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 111202121101 - 2¹ = 111202121099 is a prime.

It is a super-2 number, since 2×111202121101² (a number of 23 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 (111202151101) 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 7 ways as a sum of consecutive naturals, for example, 12227566 + ... + 12236656.

It is an arithmetic number, because the mean of its divisors is an integer number (13910105376).

Almost surely, 2^111202121101 is an apocalyptic number.

It is an amenable number.

111202121101 is a deficient number, since it is larger than the sum of its proper divisors (78721907).

111202121101 is an equidigital number, since it uses as much as digits as its factorization.

111202121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16403.

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

Adding to 111202121101 its reverse (101121202111), we get a palindrome (212323323212).

The spelling of 111202121101 in words is "one hundred eleven billion, two hundred two million, one hundred twenty-one thousand, one hundred one".