111211130212 has 48 divisors (see below), whose sum is σ = 239962141440. Its totient is φ = 43916545152.

The previous prime is 111211130161. The next prime is 111211130227. The reversal of 111211130212 is 212031112111.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71512 + ... + 477007.

It is an arithmetic number, because the mean of its divisors is an integer number (4999211280).

Almost surely, 2^111211130212 is an apocalyptic number.

It is an amenable number.

111211130212 is an abundant number, since it is smaller than the sum of its proper divisors (128751011228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111211130212 is a wasteful number, since it uses less digits than its factorization.

111211130212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549100 (or 549098 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 111211130212 its reverse (212031112111), we get a palindrome (323242242323).

The spelling of 111211130212 in words is "one hundred eleven billion, two hundred eleven million, one hundred thirty thousand, two hundred twelve".