222102220202221 has 8 divisors (see below), whose sum is σ = 233792084242080. Its totient is φ = 210412383512688.

The previous prime is 222102220202201. The next prime is 222102220202257. The reversal of 222102220202221 is 122202022201222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222102220202221 - 2²⁹ = 222101683331309 is a prime.

It is a super-2 number, since 2×222102220202221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222102220202192 and 222102220202201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222102220202201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11028075 + ... + 23787031.

It is an arithmetic number, because the mean of its divisors is an integer number (29224010530260).

Almost surely, 2^{222102220202221} is an apocalyptic number.

It is an amenable number.

222102220202221 is a deficient number, since it is larger than the sum of its proper divisors (11689864039859).

222102220202221 is a wasteful number, since it uses less digits than its factorization.

222102220202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13675163.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 222102220202221 its reverse (122202022201222), we get a palindrome (344304242403443).

The spelling of 222102220202221 in words is "two hundred twenty-two trillion, one hundred two billion, two hundred twenty million, two hundred two thousand, two hundred twenty-one".