22211201 has 2 divisors, whose sum is σ = 22211202. Its totient is φ = 22211200.

The previous prime is 22211183. The next prime is 22211219. The reversal of 22211201 is 10211222.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (22211183) and next prime (22211219).

It can be written as a sum of positive squares in only one way, i.e., 17631601 + 4579600 = 4199^2 + 2140^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22211201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22211251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105600 + 11105601.

It is an arithmetic number, because the mean of its divisors is an integer number (11105601).

Almost surely, 2^22211201 is an apocalyptic number.

It is an amenable number.

22211201 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211201 is an equidigital number, since it uses as much as digits as its factorization.

22211201 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 22211201 is about 4712.8760857888. The cubic root of 22211201 is about 281.0977357872.

Adding to 22211201 its reverse (10211222), we get a palindrome (32422423).

The spelling of 22211201 in words is "twenty-two million, two hundred eleven thousand, two hundred one".