10199121 has 4 divisors (see below), whose sum is σ = 13598832. Its totient is φ = 6799412.

The previous prime is 10199113. The next prime is 10199129. The reversal of 10199121 is 12199101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (10199113) and next prime (10199129).

It is a cyclic number.

It is not a de Polignac number, because 10199121 - 2³ = 10199113 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10199091 and 10199100.

It is not an unprimeable number, because it can be changed into a prime (10199129) 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, 1699851 + ... + 1699856.

It is an arithmetic number, because the mean of its divisors is an integer number (3399708).

Almost surely, 2^10199121 is an apocalyptic number.

It is an amenable number.

10199121 is a deficient number, since it is larger than the sum of its proper divisors (3399711).

10199121 is an equidigital number, since it uses as much as digits as its factorization.

10199121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3399710.

The product of its (nonzero) digits is 162, while the sum is 24.

The square root of 10199121 is about 3193.6062687814. The cubic root of 10199121 is about 216.8640586407.

The spelling of 10199121 in words is "ten million, one hundred ninety-nine thousand, one hundred twenty-one".