111002100101021 has 8 divisors (see below), whose sum is σ = 111500314297344. Its totient is φ = 110503889895600.

The previous prime is 111002100100979. The next prime is 111002100101047. The reversal of 111002100101021 is 120101001200111.

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 111002100101021 - 2¹⁰ = 111002100099997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111002100100993 and 111002100101011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111002100101521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64331660 + ... + 66034586.

It is an arithmetic number, because the mean of its divisors is an integer number (13937539287168).

Almost surely, 2^{111002100101021} is an apocalyptic number.

It is an amenable number.

111002100101021 is a deficient number, since it is larger than the sum of its proper divisors (498214196323).

111002100101021 is a wasteful number, since it uses less digits than its factorization.

111002100101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995451.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111002100101021 its reverse (120101001200111), we get a palindrome (231103101301132).

The spelling of 111002100101021 in words is "one hundred eleven trillion, two billion, one hundred million, one hundred one thousand, twenty-one".