21202162 has 16 divisors (see below), whose sum is σ = 34152192. Its totient is φ = 9835840.

The previous prime is 21202141. The next prime is 21202177. The reversal of 21202162 is 26120212.

It is an unprimeable number.

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, 1978 + ... + 6805.

It is an arithmetic number, because the mean of its divisors is an integer number (2134512).

Almost surely, 2^21202162 is an apocalyptic number.

21202162 is a deficient number, since it is larger than the sum of its proper divisors (12950030).

21202162 is a wasteful number, since it uses less digits than its factorization.

21202162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8873.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 21202162 is about 4604.5805455003. The cubic root of 21202162 is about 276.7749086954.

Adding to 21202162 its reverse (26120212), we get a palindrome (47322374).

The spelling of 21202162 in words is "twenty-one million, two hundred two thousand, one hundred sixty-two".