222102120010221 has 16 divisors (see below), whose sum is σ = 358952921229120. Its totient is φ = 134607345460560.

The previous prime is 222102120010181. The next prime is 222102120010241. The reversal of 222102120010221 is 122010021201222.

It is a happy number.

222102120010221 is a `hidden beast` number, since 2 + 2 + 210 + 21 + 200 + 10 + 221 = 666.

222102120010221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222102120010221 - 2⁶ = 222102120010157 is a prime.

It is a super-2 number, since 2×222102120010221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222102120010194 and 222102120010203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222102120010241) 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, 373909292650 + ... + 373909293243.

It is an arithmetic number, because the mean of its divisors is an integer number (22434557576820).

Almost surely, 2^{222102120010221} is an apocalyptic number.

It is an amenable number.

222102120010221 is a deficient number, since it is larger than the sum of its proper divisors (136850801218899).

222102120010221 is a wasteful number, since it uses less digits than its factorization.

222102120010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747818585913 (or 747818585907 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222102120010221 its reverse (122010021201222), we get a palindrome (344112141211443).

The spelling of 222102120010221 in words is "two hundred twenty-two trillion, one hundred two billion, one hundred twenty million, ten thousand, two hundred twenty-one".