19841121 has 12 divisors (see below), whose sum is σ = 28742272. Its totient is φ = 13189176.

The previous prime is 19841099. The next prime is 19841123. The reversal of 19841121 is 12114891.

It is not a de Polignac number, because 19841121 - 2¹⁰ = 19840097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19841123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 300 + ... + 6306.

Almost surely, 2^19841121 is an apocalyptic number.

It is an amenable number.

19841121 is a deficient number, since it is larger than the sum of its proper divisors (8901151).

19841121 is a wasteful number, since it uses less digits than its factorization.

19841121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6380 (or 6377 counting only the distinct ones).

The product of its digits is 576, while the sum is 27.

The square root of 19841121 is about 4454.3373244513. The cubic root of 19841121 is about 270.7210766544.

The spelling of 19841121 in words is "nineteen million, eight hundred forty-one thousand, one hundred twenty-one".