16122201 has 8 divisors (see below), whose sum is σ = 22189824. Its totient is φ = 10401360.

The previous prime is 16122199. The next prime is 16122217. The reversal of 16122201 is 10222161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16122201 - 2¹ = 16122199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16122251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86586 + ... + 86771.

It is an arithmetic number, because the mean of its divisors is an integer number (2773728).

Almost surely, 2^16122201 is an apocalyptic number.

It is an amenable number.

16122201 is a deficient number, since it is larger than the sum of its proper divisors (6067623).

16122201 is a wasteful number, since it uses less digits than its factorization.

16122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173391.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 16122201 is about 4015.2460696700. The cubic root of 16122201 is about 252.6240987209.

Adding to 16122201 its reverse (10222161), we get a palindrome (26344362).

The spelling of 16122201 in words is "sixteen million, one hundred twenty-two thousand, two hundred one".