111021121120111 has 8 divisors (see below), whose sum is σ = 114971718597120. Its totient is φ = 107132737776792.

The previous prime is 111021121120067. The next prime is 111021121120123.

111021121120111 is nontrivially palindromic in base 10.

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 111021121120111 - 2¹³ = 111021121111919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111021121150111) 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 7 ways as a sum of consecutive naturals, for example, 15553529791 + ... + 15553536928.

It is an arithmetic number, because the mean of its divisors is an integer number (14371464824640).

Almost surely, 2^{111021121120111} is an apocalyptic number.

111021121120111 is a deficient number, since it is larger than the sum of its proper divisors (3950597477009).

111021121120111 is an equidigital number, since it uses as much as digits as its factorization.

111021121120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31107066845.

The product of its (nonzero) digits is 8, while the sum is 16.

The spelling of 111021121120111 in words is "one hundred eleven trillion, twenty-one billion, one hundred twenty-one million, one hundred twenty thousand, one hundred eleven".