111011020012021 has 8 divisors (see below), whose sum is σ = 111131627324544. Its totient is φ = 110890437767760.

The previous prime is 111011020012007. The next prime is 111011020012033. The reversal of 111011020012021 is 120210020110111.

It is a happy number.

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 111011020012021 - 2⁵ = 111011020011989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111011020011992 and 111011020012010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111011020012001) 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, 2601256 + ... + 15125758.

It is an arithmetic number, because the mean of its divisors is an integer number (13891453415568).

Almost surely, 2^{111011020012021} is an apocalyptic number.

It is an amenable number.

111011020012021 is a deficient number, since it is larger than the sum of its proper divisors (120607312523).

111011020012021 is a wasteful number, since it uses less digits than its factorization.

111011020012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12534131.

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

Adding to 111011020012021 its reverse (120210020110111), we get a palindrome (231221040122132).

The spelling of 111011020012021 in words is "one hundred eleven trillion, eleven billion, twenty million, twelve thousand, twenty-one".