222201321401 has 2 divisors, whose sum is σ = 222201321402. Its totient is φ = 222201321400.

The previous prime is 222201321367. The next prime is 222201321427. The reversal of 222201321401 is 104123102222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208939495801 + 13261825600 = 457099^2 + 115160^2 .

It is a cyclic number.

It is not a de Polignac number, because 222201321401 - 2²⁶ = 222134212537 is a prime.

It is not a weakly prime, because it can be changed into another prime (222201321451) 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, 111100660700 + 111100660701.

It is an arithmetic number, because the mean of its divisors is an integer number (111100660701).

Almost surely, 2^222201321401 is an apocalyptic number.

It is an amenable number.

222201321401 is a deficient number, since it is larger than the sum of its proper divisors (1).

222201321401 is an equidigital number, since it uses as much as digits as its factorization.

222201321401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 222201321401 its reverse (104123102222), we get a palindrome (326324423623).

The spelling of 222201321401 in words is "two hundred twenty-two billion, two hundred one million, three hundred twenty-one thousand, four hundred one".