222123701 has 2 divisors, whose sum is σ = 222123702. Its totient is φ = 222123700.

The previous prime is 222123697. The next prime is 222123703. The reversal of 222123701 is 107321222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147646801 + 74476900 = 12151^2 + 8630^2 .

It is a cyclic number.

It is not a de Polignac number, because 222123701 - 2² = 222123697 is a prime.

Together with 222123703, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222123703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111061850 + 111061851.

It is an arithmetic number, because the mean of its divisors is an integer number (111061851).

Almost surely, 2^222123701 is an apocalyptic number.

It is an amenable number.

222123701 is a deficient number, since it is larger than the sum of its proper divisors (1).

222123701 is an equidigital number, since it uses as much as digits as its factorization.

222123701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 222123701 is about 14903.8149814066. The cubic root of 222123701 is about 605.6173385749.

Adding to 222123701 its reverse (107321222), we get a palindrome (329444923).

The spelling of 222123701 in words is "two hundred twenty-two million, one hundred twenty-three thousand, seven hundred one".