11210861 has 2 divisors, whose sum is σ = 11210862. Its totient is φ = 11210860.

The previous prime is 11210851. The next prime is 11210869. The reversal of 11210861 is 16801211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11055625 + 155236 = 3325^2 + 394^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11210861 is a prime.

It is a super-2 number, since 2×11210861² = 251366808722642, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11210869) 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, 5605430 + 5605431.

It is an arithmetic number, because the mean of its divisors is an integer number (5605431).

Almost surely, 2^11210861 is an apocalyptic number.

It is an amenable number.

11210861 is a deficient number, since it is larger than the sum of its proper divisors (1).

11210861 is an equidigital number, since it uses as much as digits as its factorization.

11210861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 20.

The square root of 11210861 is about 3348.2623851783. The cubic root of 11210861 is about 223.8100869596.

The spelling of 11210861 in words is "eleven million, two hundred ten thousand, eight hundred sixty-one".