11121144201 has 24 divisors (see below), whose sum is σ = 17904013920. Its totient is φ = 6610709376.

The previous prime is 11121144191. The next prime is 11121144233. The reversal of 11121144201 is 10244112111.

11121144201 is a `hidden beast` number, since 1 + 11 + 211 + 442 + 0 + 1 = 666.

It is not a de Polignac number, because 11121144201 - 2¹³ = 11121136009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11121144101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1909915 + ... + 1915728.

It is an arithmetic number, because the mean of its divisors is an integer number (746000580).

Almost surely, 2^11121144201 is an apocalyptic number.

It is an amenable number.

11121144201 is a deficient number, since it is larger than the sum of its proper divisors (6782869719).

11121144201 is a wasteful number, since it uses less digits than its factorization.

11121144201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3825685 (or 3825682 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11121144201 its reverse (10244112111), we get a palindrome (21365256312).

The spelling of 11121144201 in words is "eleven billion, one hundred twenty-one million, one hundred forty-four thousand, two hundred one".