11111202201 has 16 divisors (see below), whose sum is σ = 16167879360. Its totient is φ = 6731507520.

The previous prime is 11111202197. The next prime is 11111202217. The reversal of 11111202201 is 10220211111.

It is not a de Polignac number, because 11111202201 - 2² = 11111202197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11111202301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26355 + ... + 151383.

It is an arithmetic number, because the mean of its divisors is an integer number (1010492460).

Almost surely, 2^11111202201 is an apocalyptic number.

11111202201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11111202201 is a deficient number, since it is larger than the sum of its proper divisors (5056677159).

11111202201 is a wasteful number, since it uses less digits than its factorization.

11111202201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127736.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11111202201 its reverse (10220211111), we get a palindrome (21331413312).

It can be divided in two parts, 11111 and 202201, that added together give a palindrome (213312).

The spelling of 11111202201 in words is "eleven billion, one hundred eleven million, two hundred two thousand, two hundred one".