111100211000121 has 32 divisors (see below), whose sum is σ = 176658748950528. Its totient is φ = 60724717384320.

The previous prime is 111100211000041. The next prime is 111100211000197. The reversal of 111100211000121 is 121000112001111.

It is not a de Polignac number, because 111100211000121 - 2²⁶ = 111100143891257 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111100211000097 and 111100211000106.

It is not an unprimeable number, because it can be changed into a prime (111100211000221) 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, 33118510 + ... + 36318536.

It is an arithmetic number, because the mean of its divisors is an integer number (5520585904704).

Almost surely, 2^{111100211000121} is an apocalyptic number.

It is an amenable number.

111100211000121 is a deficient number, since it is larger than the sum of its proper divisors (65558537950407).

111100211000121 is a wasteful number, since it uses less digits than its factorization.

111100211000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3271941.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 111100211000121 its reverse (121000112001111), we get a palindrome (232100323001232).

The spelling of 111100211000121 in words is "one hundred eleven trillion, one hundred billion, two hundred eleven million, one hundred twenty-one", and thus it is an aban number.