221220200202 has 64 divisors (see below), whose sum is σ = 466465499136.
Its totient is φ = 69803300160.
The previous prime is 221220200171. The next prime is 221220200233. The reversal of 221220200202 is 202002022122.
Adding to 221220200202 its reverse (202002022122), we get a palindrome (423222222324).
It is an interprime number because it is at equal distance from previous prime (221220200171) and next prime (221220200233).
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26448073 + ... + 26456435.
It is an arithmetic number, because the mean of its divisors is an integer number (7288523424).
Almost surely, 2221220200202 is an apocalyptic number.
221220200202 is an abundant number, since it is smaller than the sum of its proper divisors (245245298934).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
221220200202 is a wasteful number, since it uses less digits than its factorization.
221220200202 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10355.
The product of its (nonzero) digits is 128, while the sum is 15.
The spelling of 221220200202 in words is "two hundred twenty-one billion, two hundred twenty million, two hundred thousand, two hundred two".