2211320401 has 4 divisors (see below), whose sum is σ = 2211892900. Its totient is φ = 2210747904.

The previous prime is 2211320381. The next prime is 2211320443. The reversal of 2211320401 is 1040231122.

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 1980250000 + 231070401 = 44500^2 + 15201^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211320401 - 2⁵ = 2211320369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211320471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280416 + ... + 288193.

It is an arithmetic number, because the mean of its divisors is an integer number (552973225).

Almost surely, 2^2211320401 is an apocalyptic number.

It is an amenable number.

2211320401 is a deficient number, since it is larger than the sum of its proper divisors (572499).

2211320401 is an equidigital number, since it uses as much as digits as its factorization.

2211320401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572498.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2211320401 is about 47024.6786379237. The cubic root of 2211320401 is about 1302.8184218845.

Adding to 2211320401 its reverse (1040231122), we get a palindrome (3251551523).

The spelling of 2211320401 in words is "two billion, two hundred eleven million, three hundred twenty thousand, four hundred one".