222001320401 has 4 divisors (see below), whose sum is σ = 253715794752. Its totient is φ = 190286846052.

The previous prime is 222001320389. The next prime is 222001320469. The reversal of 222001320401 is 104023100222.

222001320401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222001320401 - 2¹⁰ = 222001319377 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222001320401.

It is not an unprimeable number, because it can be changed into a prime (222001320701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15857237165 + ... + 15857237178.

It is an arithmetic number, because the mean of its divisors is an integer number (63428948688).

Almost surely, 2^222001320401 is an apocalyptic number.

It is an amenable number.

222001320401 is a deficient number, since it is larger than the sum of its proper divisors (31714474351).

222001320401 is an equidigital number, since it uses as much as digits as its factorization.

222001320401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31714474350.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 222001320401 its reverse (104023100222), we get a palindrome (326024420623).

The spelling of 222001320401 in words is "two hundred twenty-two billion, one million, three hundred twenty thousand, four hundred one".