111210020102111 has 16 divisors (see below), whose sum is σ = 127119076209984. Its totient is φ = 95306442891264.

The previous prime is 111210020102059. The next prime is 111210020102119. The reversal of 111210020102111 is 111201020012111.

It is a cyclic number.

It is not a de Polignac number, because 111210020102111 - 2⁴² = 106811973591007 is a prime.

It is a super-2 number, since 2×111210020102111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111210020102119) 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 15 ways as a sum of consecutive naturals, for example, 1488458891 + ... + 1488533603.

It is an arithmetic number, because the mean of its divisors is an integer number (7944942263124).

Almost surely, 2^{111210020102111} is an apocalyptic number.

111210020102111 is a deficient number, since it is larger than the sum of its proper divisors (15909056107873).

111210020102111 is an equidigital number, since it uses as much as digits as its factorization.

111210020102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108530.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111210020102111 its reverse (111201020012111), we get a palindrome (222411040114222).

The spelling of 111210020102111 in words is "one hundred eleven trillion, two hundred ten billion, twenty million, one hundred two thousand, one hundred eleven".