11111230212 has 24 divisors (see below), whose sum is σ = 26112727200. Its totient is φ = 3677097216.

The previous prime is 11111230199. The next prime is 11111230231. The reversal of 11111230212 is 21203211111.

It is a junction number, because it is equal to n+sod(n) for n = 11111230191 and 11111230200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3329037 + ... + 3332372.

It is an arithmetic number, because the mean of its divisors is an integer number (1088030300).

Almost surely, 2^11111230212 is an apocalyptic number.

11111230212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11111230212 is an abundant number, since it is smaller than the sum of its proper divisors (15001496988).

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

11111230212 is a wasteful number, since it uses less digits than its factorization.

11111230212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6661555 (or 6661553 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11111230212 its reverse (21203211111), we get a palindrome (32314441323).

The spelling of 11111230212 in words is "eleven billion, one hundred eleven million, two hundred thirty thousand, two hundred twelve".