11122111031211 has 10 divisors (see below), whose sum is σ = 16614511540572. Its totient is φ = 7414740687420.

The previous prime is 11122111031209. The next prime is 11122111031279. The reversal of 11122111031211 is 11213011122111.

11122111031211 is a `hidden beast` number, since 1 + 11 + 221 + 110 + 312 + 11 = 666.

It is not a de Polignac number, because 11122111031211 - 2¹ = 11122111031209 is a prime.

It is a super-2 number, since 2×11122111031211² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11122111031411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 68655006285 + ... + 68655006446.

Almost surely, 2^{11122111031211} is an apocalyptic number.

11122111031211 is a deficient number, since it is larger than the sum of its proper divisors (5492400509361).

11122111031211 is an equidigital number, since it uses as much as digits as its factorization.

11122111031211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137310012743 (or 137310012734 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 18.

Adding to 11122111031211 its reverse (11213011122111), we get a palindrome (22335122153322).

The spelling of 11122111031211 in words is "eleven trillion, one hundred twenty-two billion, one hundred eleven million, thirty-one thousand, two hundred eleven".