20021320202 has 32 divisors (see below), whose sum is σ = 32506935552. Its totient is φ = 9193650624.

The previous prime is 20021320201. The next prime is 20021320217. The reversal of 20021320202 is 20202312002.

It is not an unprimeable number, because it can be changed into a prime (20021320201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4453868 + ... + 4458360.

It is an arithmetic number, because the mean of its divisors is an integer number (1015841736).

Almost surely, 2^20021320202 is an apocalyptic number.

20021320202 is a deficient number, since it is larger than the sum of its proper divisors (12485615350).

20021320202 is a wasteful number, since it uses less digits than its factorization.

20021320202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5342.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 20021320202 its reverse (20202312002), we get a palindrome (40223632204).

The spelling of 20021320202 in words is "twenty billion, twenty-one million, three hundred twenty thousand, two hundred two".