989012211110111 has 4 divisors (see below), whose sum is σ = 989018032800000. Its totient is φ = 989006389420224.

The previous prime is 989012211110081. The next prime is 989012211110177. The reversal of 989012211110111 is 111011112210989.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 989012211110111 - 2¹⁸ = 989012210847967 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 (989012211190111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2910590111 + ... + 2910929888.

It is an arithmetic number, because the mean of its divisors is an integer number (247254508200000).

Almost surely, 2^{989012211110111} is an apocalyptic number.

989012211110111 is a deficient number, since it is larger than the sum of its proper divisors (5821689889).

989012211110111 is a wasteful number, since it uses less digits than its factorization.

989012211110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5821689888.

The product of its (nonzero) digits is 2592, while the sum is 38.

The spelling of 989012211110111 in words is "nine hundred eighty-nine trillion, twelve billion, two hundred eleven million, one hundred ten thousand, one hundred eleven".