111202121122101 has 12 divisors (see below), whose sum is σ = 161587114127712. Its totient is φ = 73690826770536.

The previous prime is 111202121122061. The next prime is 111202121122123. The reversal of 111202121122101 is 101221121202111.

It is a happy number.

111202121122101 is a `hidden beast` number, since 11 + 120 + 212 + 112 + 210 + 1 = 666.

It is not a de Polignac number, because 111202121122101 - 2³⁰ = 111201047380277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111202121122181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36993385431 + ... + 36993388436.

It is an arithmetic number, because the mean of its divisors is an integer number (13465592843976).

Almost surely, 2^{111202121122101} is an apocalyptic number.

It is an amenable number.

111202121122101 is a deficient number, since it is larger than the sum of its proper divisors (50384993005611).

111202121122101 is a wasteful number, since it uses less digits than its factorization.

111202121122101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73986774040 (or 73986774037 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111202121122101 its reverse (101221121202111), we get a palindrome (212423242324212).

The spelling of 111202121122101 in words is "one hundred eleven trillion, two hundred two billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred one".