222102102221171 has 2 divisors, whose sum is σ = 222102102221172. Its totient is φ = 222102102221170.

The previous prime is 222102102221147. The next prime is 222102102221221. The reversal of 222102102221171 is 171122201201222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222102102221171 is a prime.

It is a super-2 number, since 2×222102102221171² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222102102221171.

It is not a weakly prime, because it can be changed into another prime (222102102221371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111051051110585 + 111051051110586.

It is an arithmetic number, because the mean of its divisors is an integer number (111051051110586).

Almost surely, 2^{222102102221171} is an apocalyptic number.

222102102221171 is a deficient number, since it is larger than the sum of its proper divisors (1).

222102102221171 is an equidigital number, since it uses as much as digits as its factorization.

222102102221171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 26.

Adding to 222102102221171 its reverse (171122201201222), we get a palindrome (393224303422393).

The spelling of 222102102221171 in words is "two hundred twenty-two trillion, one hundred two billion, one hundred two million, two hundred twenty-one thousand, one hundred seventy-one".