20021302 has 12 divisors (see below), whose sum is σ = 34935300. Its totient is φ = 8580516.

The previous prime is 20021299. The next prime is 20021303. The reversal of 20021302 is 20312002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102052 + ... + 102247.

It is an arithmetic number, because the mean of its divisors is an integer number (2911275).

Almost surely, 2^20021302 is an apocalyptic number.

20021302 is a deficient number, since it is larger than the sum of its proper divisors (14913998).

20021302 is a wasteful number, since it uses less digits than its factorization.

20021302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204315 (or 204308 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 20021302 is about 4474.5169571698. The cubic root of 20021302 is about 271.5380983383.

Adding to 20021302 its reverse (20312002), we get a palindrome (40333304).

The spelling of 20021302 in words is "twenty million, twenty-one thousand, three hundred two".