11100212231211 has 48 divisors (see below), whose sum is σ = 16319579328000. Its totient is φ = 7268977376640.

The previous prime is 11100212231137. The next prime is 11100212231221. The reversal of 11100212231211 is 11213221200111.

It is a happy number.

11100212231211 is a `hidden beast` number, since 1 + 1 + 10 + 0 + 212 + 231 + 211 = 666.

It is not a de Polignac number, because 11100212231211 - 2⁹ = 11100212230699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11100212231221) 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, 258972300 + ... + 259015158.

It is an arithmetic number, because the mean of its divisors is an integer number (339991236000).

Almost surely, 2^{11100212231211} is an apocalyptic number.

11100212231211 is a deficient number, since it is larger than the sum of its proper divisors (5219367096789).

11100212231211 is a wasteful number, since it uses less digits than its factorization.

11100212231211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44424 (or 44421 counting only the distinct ones).

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

Adding to 11100212231211 its reverse (11213221200111), we get a palindrome (22313433431322).

The spelling of 11100212231211 in words is "eleven trillion, one hundred billion, two hundred twelve million, two hundred thirty-one thousand, two hundred eleven".