22122002021177 has 2 divisors, whose sum is σ = 22122002021178. Its totient is φ = 22122002021176.

The previous prime is 22122002021173. The next prime is 22122002021347. The reversal of 22122002021177 is 77112020022122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12862128677161 + 9259873344016 = 3586381^2 + 3043004^2 .

It is a cyclic number.

It is not a de Polignac number, because 22122002021177 - 2² = 22122002021173 is a prime.

It is not a weakly prime, because it can be changed into another prime (22122002021173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11061001010588 + 11061001010589.

It is an arithmetic number, because the mean of its divisors is an integer number (11061001010589).

Almost surely, 2^{22122002021177} is an apocalyptic number.

It is an amenable number.

22122002021177 is a deficient number, since it is larger than the sum of its proper divisors (1).

22122002021177 is an equidigital number, since it uses as much as digits as its factorization.

22122002021177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136, while the sum is 29.

Adding to 22122002021177 its reverse (77112020022122), we get a palindrome (99234022043299).

The spelling of 22122002021177 in words is "twenty-two trillion, one hundred twenty-two billion, two million, twenty-one thousand, one hundred seventy-seven".