11111012201 has 48 divisors (see below), whose sum is σ = 12736030080. Its totient is φ = 9668229120.

The previous prime is 11111012191. The next prime is 11111012221. The reversal of 11111012201 is 10221011111.

It is a de Polignac number, because none of the positive numbers 2^k-11111012201 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11111012221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27166085 + ... + 27166493.

It is an arithmetic number, because the mean of its divisors is an integer number (265333960).

Almost surely, 2^11111012201 is an apocalyptic number.

It is an amenable number.

11111012201 is a deficient number, since it is larger than the sum of its proper divisors (1625017879).

11111012201 is a wasteful number, since it uses less digits than its factorization.

11111012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594 (or 577 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11111012201 its reverse (10221011111), we get a palindrome (21332023312).

The spelling of 11111012201 in words is "eleven billion, one hundred eleven million, twelve thousand, two hundred one".