111010020001021 has 32 divisors (see below), whose sum is σ = 113110827111936. Its totient is φ = 108932428800000.

The previous prime is 111010020001019. The next prime is 111010020001079. The reversal of 111010020001021 is 120100020010111.

It is a cyclic number.

It is not a de Polignac number, because 111010020001021 - 2¹ = 111010020001019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111010020000989 and 111010020001007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111010020001091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30896190801 + ... + 30896194393.

It is an arithmetic number, because the mean of its divisors is an integer number (3534713347248).

Almost surely, 2^{111010020001021} is an apocalyptic number.

It is an amenable number.

111010020001021 is a deficient number, since it is larger than the sum of its proper divisors (2100807110915).

111010020001021 is a wasteful number, since it uses less digits than its factorization.

111010020001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7933.

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

Adding to 111010020001021 its reverse (120100020010111), we get a palindrome (231110040011132).

The spelling of 111010020001021 in words is "one hundred eleven trillion, ten billion, twenty million, one thousand, twenty-one".