16212099 has 4 divisors (see below), whose sum is σ = 21616136. Its totient is φ = 10808064.

The previous prime is 16212083. The next prime is 16212103. The reversal of 16212099 is 99021261.

It is a happy number.

16212099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 16212099 - 2⁴ = 16212083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16212019) 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, 2702014 + ... + 2702019.

It is an arithmetic number, because the mean of its divisors is an integer number (5404034).

Almost surely, 2^16212099 is an apocalyptic number.

16212099 is a deficient number, since it is larger than the sum of its proper divisors (5404037).

16212099 is an equidigital number, since it uses as much as digits as its factorization.

16212099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404036.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 16212099 is about 4026.4250893317. The cubic root of 16212099 is about 253.0927758399.

The spelling of 16212099 in words is "sixteen million, two hundred twelve thousand, ninety-nine".