16221062 has 32 divisors (see below), whose sum is σ = 29272320. Its totient is φ = 6642720.

The previous prime is 16221061. The next prime is 16221089. The reversal of 16221062 is 26012261.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16221061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11639 + ... + 12957.

It is an arithmetic number, because the mean of its divisors is an integer number (914760).

Almost surely, 2^16221062 is an apocalyptic number.

16221062 is a deficient number, since it is larger than the sum of its proper divisors (13051258).

16221062 is a wasteful number, since it uses less digits than its factorization.

16221062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 16221062 is about 4027.5379576113. The cubic root of 16221062 is about 253.1394087617.

The spelling of 16221062 in words is "sixteen million, two hundred twenty-one thousand, sixty-two".