11231200221111 has 24 divisors (see below), whose sum is σ = 17471517750960. Its totient is φ = 6911206436736.

The previous prime is 11231200221103. The next prime is 11231200221119. The reversal of 11231200221111 is 11112200213211.

It is a happy number.

11231200221111 is a `hidden beast` number, since 1 + 1 + 231 + 200 + 221 + 1 + 11 = 666.

It is an interprime number because it is at equal distance from previous prime (11231200221103) and next prime (11231200221119).

It is not a de Polignac number, because 11231200221111 - 2³ = 11231200221103 is a prime.

It is a super-4 number, since 4×11231200221111⁴ (a number of 53 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231200221119) 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, 616435 + ... + 4779371.

It is an arithmetic number, because the mean of its divisors is an integer number (727979906290).

Almost surely, 2^{11231200221111} is an apocalyptic number.

11231200221111 is a deficient number, since it is larger than the sum of its proper divisors (6240317529849).

11231200221111 is a wasteful number, since it uses less digits than its factorization.

11231200221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4186015 (or 4186012 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 11231200221111 its reverse (11112200213211), we get a palindrome (22343400434322).

The spelling of 11231200221111 in words is "eleven trillion, two hundred thirty-one billion, two hundred million, two hundred twenty-one thousand, one hundred eleven".