10198111 has 16 divisors (see below), whose sum is σ = 13155840. Its totient is φ = 7670880.

The previous prime is 10198109. The next prime is 10198121. The reversal of 10198111 is 11189101.

It is not a de Polignac number, because 10198111 - 2¹ = 10198109 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 (10198121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51 + ... + 4516.

It is an arithmetic number, because the mean of its divisors is an integer number (822240).

Almost surely, 2^10198111 is an apocalyptic number.

10198111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10198111 is a deficient number, since it is larger than the sum of its proper divisors (2957729).

10198111 is a wasteful number, since it uses less digits than its factorization.

10198111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4614.

The product of its (nonzero) digits is 72, while the sum is 22.

The square root of 10198111 is about 3193.4481364193. The cubic root of 10198111 is about 216.8568998562.

The spelling of 10198111 in words is "ten million, one hundred ninety-eight thousand, one hundred eleven".