222120323057 has 2 divisors, whose sum is σ = 222120323058. Its totient is φ = 222120323056.

The previous prime is 222120322999. The next prime is 222120323059. The reversal of 222120323057 is 750323021222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131301870736 + 90818452321 = 362356^2 + 301361^2 .

It is a cyclic number.

It is not a de Polignac number, because 222120323057 - 2¹⁰ = 222120322033 is a prime.

Together with 222120323059, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (222120323059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111060161528 + 111060161529.

It is an arithmetic number, because the mean of its divisors is an integer number (111060161529).

Almost surely, 2^222120323057 is an apocalyptic number.

It is an amenable number.

222120323057 is a deficient number, since it is larger than the sum of its proper divisors (1).

222120323057 is an equidigital number, since it uses as much as digits as its factorization.

222120323057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 29.

Adding to 222120323057 its reverse (750323021222), we get a palindrome (972443344279).

The spelling of 222120323057 in words is "two hundred twenty-two billion, one hundred twenty million, three hundred twenty-three thousand, fifty-seven".