111011012002121 has 8 divisors (see below), whose sum is σ = 138403339639104. Its totient is φ = 86502087274320.

The previous prime is 111011012002063. The next prime is 111011012002141. The reversal of 111011012002121 is 121200210110111.

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 111011012002121 - 2¹⁴ = 111011011985737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111011012002096 and 111011012002105.

It is not an unprimeable number, because it can be changed into a prime (111011012002141) 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, 720850727210 + ... + 720850727363.

It is an arithmetic number, because the mean of its divisors is an integer number (17300417454888).

Almost surely, 2^{111011012002121} is an apocalyptic number.

111011012002121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111011012002121 is a deficient number, since it is larger than the sum of its proper divisors (27392327636983).

111011012002121 is a wasteful number, since it uses less digits than its factorization.

111011012002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441701454591.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111011012002121 its reverse (121200210110111), we get a palindrome (232211222112232).

The spelling of 111011012002121 in words is "one hundred eleven trillion, eleven billion, twelve million, two thousand, one hundred twenty-one".