222221222201401 has 2 divisors, whose sum is σ = 222221222201402. Its totient is φ = 222221222201400.

The previous prime is 222221222201389. The next prime is 222221222201417. The reversal of 222221222201401 is 104102222122222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178802360890000 + 43418861311401 = 13371700^2 + 6589299^2 .

It is a cyclic number.

It is not a de Polignac number, because 222221222201401 - 2⁹ = 222221222200889 is a prime.

It is not a weakly prime, because it can be changed into another prime (222221222201491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110611100700 + 111110611100701.

It is an arithmetic number, because the mean of its divisors is an integer number (111110611100701).

Almost surely, 2^{222221222201401} is an apocalyptic number.

It is an amenable number.

222221222201401 is a deficient number, since it is larger than the sum of its proper divisors (1).

222221222201401 is an equidigital number, since it uses as much as digits as its factorization.

222221222201401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 222221222201401 its reverse (104102222122222), we get a palindrome (326323444323623).

The spelling of 222221222201401 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred one thousand, four hundred one".