21300020202 has 32 divisors (see below), whose sum is σ = 43002368640. Its totient is φ = 7033026560.

The previous prime is 21300020197. The next prime is 21300020213. The reversal of 21300020202 is 20202000312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1272427 + ... + 1289057.

It is an arithmetic number, because the mean of its divisors is an integer number (1343824020).

Almost surely, 2^21300020202 is an apocalyptic number.

21300020202 is an abundant number, since it is smaller than the sum of its proper divisors (21702348438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21300020202 is a wasteful number, since it uses less digits than its factorization.

21300020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18638.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 21300020202 its reverse (20202000312), we get a palindrome (41502020514).

The spelling of 21300020202 in words is "twenty-one billion, three hundred million, twenty thousand, two hundred two".