21020322202 has 64 divisors (see below), whose sum is σ = 35366647680. Its totient is φ = 9290272000.

The previous prime is 21020322199. The next prime is 21020322203. The reversal of 21020322202 is 20222302012.

It is not an unprimeable number, because it can be changed into a prime (21020322203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54036624 + ... + 54037012.

It is an arithmetic number, because the mean of its divisors is an integer number (552603870).

Almost surely, 2^21020322202 is an apocalyptic number.

21020322202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21020322202 is a deficient number, since it is larger than the sum of its proper divisors (14346325478).

21020322202 is a wasteful number, since it uses less digits than its factorization.

21020322202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 21020322202 its reverse (20222302012), we get a palindrome (41242624214).

The spelling of 21020322202 in words is "twenty-one billion, twenty million, three hundred twenty-two thousand, two hundred two".