11200001 has 2 divisors, whose sum is σ = 11200002. Its totient is φ = 11200000.

The previous prime is 11199989. The next prime is 11200009. The reversal of 11200001 is 10000211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10086976 + 1113025 = 3176^2 + 1055^2 .

It is a cyclic number.

It is not a de Polignac number, because 11200001 - 2²² = 7005697 is a prime.

It is not a weakly prime, because it can be changed into another prime (11200009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5600000 + 5600001.

It is an arithmetic number, because the mean of its divisors is an integer number (5600001).

Almost surely, 2^11200001 is an apocalyptic number.

It is an amenable number.

11200001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11200001 is an equidigital number, since it uses as much as digits as its factorization.

11200001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 11200001 is about 3346.6402555399. The cubic root of 11200001 is about 223.7377950751.

Adding to 11200001 its reverse (10000211), we get a palindrome (21200212).

Multiplying 11200001 by its reverse (10000211), we get a palindrome (112002373200211).

The spelling of 11200001 in words is "eleven million, two hundred thousand, one".