111020021002111 has 8 divisors (see below), whose sum is σ = 119875484424080. Its totient is φ = 102209623552512.

The previous prime is 111020021002103. The next prime is 111020021002133. The reversal of 111020021002111 is 111200120020111.

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 111020021002111 - 2³ = 111020021002103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111020021002091 and 111020021002100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020021002151) 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, 11266487970 + ... + 11266497823.

It is an arithmetic number, because the mean of its divisors is an integer number (14984435553010).

Almost surely, 2^{111020021002111} is an apocalyptic number.

111020021002111 is a deficient number, since it is larger than the sum of its proper divisors (8855463421969).

111020021002111 is a wasteful number, since it uses less digits than its factorization.

111020021002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22532986185.

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

Adding to 111020021002111 its reverse (111200120020111), we get a palindrome (222220141022222).

The spelling of 111020021002111 in words is "one hundred eleven trillion, twenty billion, twenty-one million, two thousand, one hundred eleven".