221010020202204 has 72 divisors (see below), whose sum is σ = 564200459445168. Its totient is φ = 72939965587200.

The previous prime is 221010020202163. The next prime is 221010020202217. The reversal of 221010020202204 is 402202020010122.

It is a super-3 number, since 3×221010020202204³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 612329239 + ... + 612690065.

It is an arithmetic number, because the mean of its divisors is an integer number (7836117492294).

Almost surely, 2^{221010020202204} is an apocalyptic number.

It is an amenable number.

221010020202204 is an abundant number, since it is smaller than the sum of its proper divisors (343190439242964).

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

221010020202204 is a wasteful number, since it uses less digits than its factorization.

221010020202204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529395 (or 529390 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 221010020202204 its reverse (402202020010122), we get a palindrome (623212040212326).

The spelling of 221010020202204 in words is "two hundred twenty-one trillion, ten billion, twenty million, two hundred two thousand, two hundred four".