111222100002121 has 8 divisors (see below), whose sum is σ = 119760586244640. Its totient is φ = 102905392623168.

The previous prime is 111222100002089. The next prime is 111222100002131. The reversal of 111222100002121 is 121200001222111.

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 111222100002121 - 2⁵ = 111222100002089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111222100002095 and 111222100002104.

It is not an unprimeable number, because it can be changed into a prime (111222100002131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55444714851 + ... + 55444716856.

It is an arithmetic number, because the mean of its divisors is an integer number (14970073280580).

Almost surely, 2^{111222100002121} is an apocalyptic number.

It is an amenable number.

111222100002121 is a deficient number, since it is larger than the sum of its proper divisors (8538486242519).

111222100002121 is a wasteful number, since it uses less digits than its factorization.

111222100002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110889431783.

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

Adding to 111222100002121 its reverse (121200001222111), we get a palindrome (232422101224232).

The spelling of 111222100002121 in words is "one hundred eleven trillion, two hundred twenty-two billion, one hundred million, two thousand, one hundred twenty-one".