11621201 has 2 divisors, whose sum is σ = 11621202. Its totient is φ = 11621200.

The previous prime is 11621191. The next prime is 11621213. The reversal of 11621201 is 10212611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5856400 + 5764801 = 2420^2 + 2401^2 .

It is a cyclic number.

It is not a de Polignac number, because 11621201 - 2¹⁸ = 11359057 is a prime.

It is not a weakly prime, because it can be changed into another prime (11621501) 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, 5810600 + 5810601.

It is an arithmetic number, because the mean of its divisors is an integer number (5810601).

Almost surely, 2^11621201 is an apocalyptic number.

It is an amenable number.

11621201 is a deficient number, since it is larger than the sum of its proper divisors (1).

11621201 is an equidigital number, since it uses as much as digits as its factorization.

11621201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 11621201 is about 3408.9882663336. The cubic root of 11621201 is about 226.5080654734.

Adding to 11621201 its reverse (10212611), we get a palindrome (21833812).

The spelling of 11621201 in words is "eleven million, six hundred twenty-one thousand, two hundred one".