401222222105 has 4 divisors (see below), whose sum is σ = 481466666532. Its totient is φ = 320977777680.

The previous prime is 401222222101. The next prime is 401222222147. The reversal of 401222222105 is 501222222104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 309055941184 + 92166280921 = 555928^2 + 303589^2 .

It is not a de Polignac number, because 401222222105 - 2² = 401222222101 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401222222101) 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, 40122222206 + ... + 40122222215.

It is an arithmetic number, because the mean of its divisors is an integer number (120366666633).

Almost surely, 2^401222222105 is an apocalyptic number.

It is an amenable number.

401222222105 is a deficient number, since it is larger than the sum of its proper divisors (80244444427).

401222222105 is an equidigital number, since it uses as much as digits as its factorization.

401222222105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80244444426.

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 401222222105 its reverse (501222222104), we get a palindrome (902444444209).

Subtracting 401222222105 from its reverse (501222222104), we obtain a palindrome (99999999999).

The spelling of 401222222105 in words is "four hundred one billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred five".