222102221009 has 2 divisors, whose sum is σ = 222102221010. Its totient is φ = 222102221008.

The previous prime is 222102220999. The next prime is 222102221021. The reversal of 222102221009 is 900122201222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 215972113984 + 6130107025 = 464728^2 + 78295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222102221009 is a prime.

It is not a weakly prime, because it can be changed into another prime (222102221909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111051110504 + 111051110505.

It is an arithmetic number, because the mean of its divisors is an integer number (111051110505).

Almost surely, 2^222102221009 is an apocalyptic number.

It is an amenable number.

222102221009 is a deficient number, since it is larger than the sum of its proper divisors (1).

222102221009 is an equidigital number, since it uses as much as digits as its factorization.

222102221009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 222102221009 in words is "two hundred twenty-two billion, one hundred two million, two hundred twenty-one thousand, nine".