11112011222212 has 24 divisors (see below), whose sum is σ = 19599551354880. Its totient is φ = 5512141252800.

The previous prime is 11112011222159. The next prime is 11112011222287. The reversal of 11112011222212 is 21222211021111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11112011222212.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 27044712 + ... + 27452512.

It is an arithmetic number, because the mean of its divisors is an integer number (816647973120).

Almost surely, 2^{11112011222212} is an apocalyptic number.

It is an amenable number.

11112011222212 is a deficient number, since it is larger than the sum of its proper divisors (8487540132668).

11112011222212 is a wasteful number, since it uses less digits than its factorization.

11112011222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461571 (or 461569 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11112011222212 its reverse (21222211021111), we get a palindrome (32334222243323).

The spelling of 11112011222212 in words is "eleven trillion, one hundred twelve billion, eleven million, two hundred twenty-two thousand, two hundred twelve".