222100200210221 has 16 divisors (see below), whose sum is σ = 226093162014720. Its totient is φ = 218148823289280.

The previous prime is 222100200210199. The next prime is 222100200210241. The reversal of 222100200210221 is 122012002001222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 222100200210221 - 2¹⁰ = 222100200209197 is a prime.

It is a super-3 number, since 3×222100200210221³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222100200210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222100200210241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6595181 + ... + 22083858.

It is an arithmetic number, because the mean of its divisors is an integer number (14130822625920).

Almost surely, 2^{222100200210221} is an apocalyptic number.

It is an amenable number.

222100200210221 is a deficient number, since it is larger than the sum of its proper divisors (3992961804499).

222100200210221 is a wasteful number, since it uses less digits than its factorization.

222100200210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28679764.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222100200210221 its reverse (122012002001222), we get a palindrome (344112202211443).

The spelling of 222100200210221 in words is "two hundred twenty-two trillion, one hundred billion, two hundred million, two hundred ten thousand, two hundred twenty-one".