111002100121 has 8 divisors (see below), whose sum is σ = 122900562144. Its totient is φ = 99404865120.

The previous prime is 111002100073. The next prime is 111002100149. The reversal of 111002100121 is 121001200111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111002100121 - 2⁹ = 111002099609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111002100098 and 111002100107.

It is not an unprimeable number, because it can be changed into a prime (111002100191) 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, 75305980 + ... + 75307453.

It is an arithmetic number, because the mean of its divisors is an integer number (15362570268).

Almost surely, 2^111002100121 is an apocalyptic number.

111002100121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111002100121 is a deficient number, since it is larger than the sum of its proper divisors (11898462023).

111002100121 is a wasteful number, since it uses less digits than its factorization.

111002100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150613511.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 111002100121 its reverse (121001200111), we get a palindrome (232003300232).

The spelling of 111002100121 in words is "one hundred eleven billion, two million, one hundred thousand, one hundred twenty-one".