11112212100331 has 4 divisors (see below), whose sum is σ = 11370635637592. Its totient is φ = 10853788563072.

The previous prime is 11112212100329. The next prime is 11112212100361. The reversal of 11112212100331 is 13300121221111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11112212100331 - 2¹ = 11112212100329 is a prime.

It is a super-2 number, since 2×11112212100331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11112212100299 and 11112212100308.

It is not an unprimeable number, because it can be changed into a prime (11112212100361) 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 3 ways as a sum of consecutive naturals, for example, 129211768566 + ... + 129211768651.

It is an arithmetic number, because the mean of its divisors is an integer number (2842658909398).

Almost surely, 2^{11112212100331} is an apocalyptic number.

11112212100331 is a deficient number, since it is larger than the sum of its proper divisors (258423537261).

11112212100331 is an equidigital number, since it uses as much as digits as its factorization.

11112212100331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258423537260.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 11112212100331 its reverse (13300121221111), we get a palindrome (24412333321442).

The spelling of 11112212100331 in words is "eleven trillion, one hundred twelve billion, two hundred twelve million, one hundred thousand, three hundred thirty-one".