22110401 has 2 divisors, whose sum is σ = 22110402. Its totient is φ = 22110400.

The previous prime is 22110377. The next prime is 22110419. The reversal of 22110401 is 10401122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13104400 + 9006001 = 3620^2 + 3001^2 .

It is a cyclic number.

It is not a de Polignac number, because 22110401 - 2¹⁰ = 22109377 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22110001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055200 + 11055201.

It is an arithmetic number, because the mean of its divisors is an integer number (11055201).

Almost surely, 2^22110401 is an apocalyptic number.

It is an amenable number.

22110401 is a deficient number, since it is larger than the sum of its proper divisors (1).

22110401 is an equidigital number, since it uses as much as digits as its factorization.

22110401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 22110401 is about 4702.1698182860. The cubic root of 22110401 is about 280.6718602209.

Adding to 22110401 its reverse (10401122), we get a palindrome (32511523).

The spelling of 22110401 in words is "twenty-two million, one hundred ten thousand, four hundred one".