11111201 has 4 divisors (see below), whose sum is σ = 11215152. Its totient is φ = 11007252.

The previous prime is 11111173. The next prime is 11111209. The reversal of 11111201 is 10211111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10211111 = 103 ⋅99137.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11111201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11111209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51815 + ... + 52028.

It is an arithmetic number, because the mean of its divisors is an integer number (2803788).

Almost surely, 2^11111201 is an apocalyptic number.

It is an amenable number.

11111201 is a deficient number, since it is larger than the sum of its proper divisors (103951).

11111201 is a wasteful number, since it uses less digits than its factorization.

11111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103950.

The product of its (nonzero) digits is 2, while the sum is 8.

The square root of 11111201 is about 3333.3468166394. The cubic root of 11111201 is about 223.1449184383.

Adding to 11111201 its reverse (10211111), we get a palindrome (21322312).

The spelling of 11111201 in words is "eleven million, one hundred eleven thousand, two hundred one".