21200202202 has 16 divisors (see below), whose sum is σ = 32166512640.
Its totient is φ = 10478634768.
The previous prime is 21200202197. The next prime is 21200202263. The reversal of 21200202202 is 20220200212.
Adding to 21200202202 its reverse (20220200212), we get a palindrome (41420402414).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80302 + ... + 221017.
It is an arithmetic number, because the mean of its divisors is an integer number (2010407040).
Almost surely, 221200202202 is an apocalyptic number.
21200202202 is a deficient number, since it is larger than the sum of its proper divisors (10966310438).
21200202202 is a wasteful number, since it uses less digits than its factorization.
21200202202 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 301725.
The product of its (nonzero) digits is 64, while the sum is 13.
The spelling of 21200202202 in words is "twenty-one billion, two hundred million, two hundred two thousand, two hundred two".