111020101102021 has 8 divisors (see below), whose sum is σ = 111685166147520. Its totient is φ = 110355039319008.

The previous prime is 111020101102003. The next prime is 111020101102039. The reversal of 111020101102021 is 120201101020111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111020101102003) and next prime (111020101102039).

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 111020101102021 - 2⁵ = 111020101101989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111020101101992 and 111020101102010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020101102621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132832210 + ... + 133665388.

It is an arithmetic number, because the mean of its divisors is an integer number (13960645768440).

Almost surely, 2^{111020101102021} is an apocalyptic number.

It is an amenable number.

111020101102021 is a deficient number, since it is larger than the sum of its proper divisors (665065045499).

111020101102021 is an equidigital number, since it uses as much as digits as its factorization.

111020101102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631243.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111020101102021 its reverse (120201101020111), we get a palindrome (231221202122132).

The spelling of 111020101102021 in words is "one hundred eleven trillion, twenty billion, one hundred one million, one hundred two thousand, twenty-one".