11111120211201 has 4 divisors (see below), whose sum is σ = 14814826948272. Its totient is φ = 7407413474132.

The previous prime is 11111120211179. The next prime is 11111120211211. The reversal of 11111120211201 is 10211202111111.

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.

It is a cyclic number.

It is not a de Polignac number, because 11111120211201 - 2⁶ = 11111120211137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11111120211211) 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, 1851853368531 + ... + 1851853368536.

It is an arithmetic number, because the mean of its divisors is an integer number (3703706737068).

Almost surely, 2^{11111120211201} is an apocalyptic number.

It is an amenable number.

11111120211201 is a deficient number, since it is larger than the sum of its proper divisors (3703706737071).

11111120211201 is an equidigital number, since it uses as much as digits as its factorization.

11111120211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3703706737070.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11111120211201 its reverse (10211202111111), we get a palindrome (21322322322312).

The spelling of 11111120211201 in words is "eleven trillion, one hundred eleven billion, one hundred twenty million, two hundred eleven thousand, two hundred one".