2211444401 has 4 divisors (see below), whose sum is σ = 2211674100. Its totient is φ = 2211214704.

The previous prime is 2211444397. The next prime is 2211444421. The reversal of 2211444401 is 1044441122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1044441122 = 2 ⋅522220561.

It can be written as a sum of positive squares in 2 ways, for example, as 591462400 + 1619982001 = 24320^2 + 40249^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211444401 - 2² = 2211444397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211444421) 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, 99746 + ... + 119883.

It is an arithmetic number, because the mean of its divisors is an integer number (552918525).

Almost surely, 2^2211444401 is an apocalyptic number.

It is an amenable number.

2211444401 is a deficient number, since it is larger than the sum of its proper divisors (229699).

2211444401 is a wasteful number, since it uses less digits than its factorization.

2211444401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229698.

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 2211444401 is about 47025.9970760855. The cubic root of 2211444401 is about 1302.8427733179.

Adding to 2211444401 its reverse (1044441122), we get a palindrome (3255885523).

The spelling of 2211444401 in words is "two billion, two hundred eleven million, four hundred forty-four thousand, four hundred one".